How would you compare sensible heat and latent heat
1. How would you compare sensible heat and latent heat
Answer:
The heat added to keep the water boiling is latent heat. ... Sensible capacity is the capacity required to lower the temperature and latent capacity is the capacity to remove the moisture from the air.
2. In your own words, what is the difference between Sensible Heat and Latent Heat?
Answer:
Sensible heat causes change in temperature due to contact with colder or warmer air of surfaces. Latent heat is the energy absorbed by or released from a substance during a phase change from a gas to a liquid or a solid or vice versa.
3. what is the difference latent heat of fusion and latent heat of vaporization?
Answer:
Latent heat of fusion is the amount of heat required to change from solid to liquid to solid.Likewise,Latent heat of vaporization is the amount of heat needed to change liquid to vapor or released when vapor condenses back to liquid
4. what is the difference between latent heat of fusion and latent heat of vaporization
Answer:
The latent heat of fusion is the heat required to change the solid from solid to liquid state without any change in temperature. ... While Latent heat of vaporization is the heat required to change the liquid from liquid to vapor state without any change in temperature.
5. What is latent heat?
Answer:
Latent heat is energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process — usually a first-order phase transition. Latent heat can be understood as energy in hidden form which is supplied or extracted to change the state of a substance without changing its temperature.
6. What is the latent heat of vaporization of boiling water?
Answer:
For the water substance at 1 atm and 100 °C (the boiling point of water at 1 atm), the latent heat of vaporization is 2.25 ÷ 106 J kg21. The latent heat of condensation has the same value as the latent heat of vaporization, but heat is released in the change in phase from vapor to liquid.
Explanation:
pabrainliest tenks
Answer:
For the water substance at 1 atm and 100 °C (the boiling point of water at 1 atm), the latent heat of vaporization is 2.25 ÷ 106 J kg21. The latent heat of condensation has the same value as the latent heat of vaporization, but heat is released in the change in phase from vapor to liquid
7. What's the latent heat of fusion of water?
Answer:
Similarly, while ice melts, it remains at 0 °C (32 °F), and the liquid water that is formed with the latent heat of fusion is also at 0 °C. The heat of fusion for water at 0 °C is approximately 334 joules (79.7 calories) per gram, and the heat of vaporization at 100 °C is about 2,230 joules (533 calories) per gram.
8. In order for heat to be transferred between two bodies in contact, they must have different____. a. latent heat b. masses c. specific heat d. temperatures
Answer:
D. Temperatures
Explanation:
not sure tho
9. It is the transferring of heat from one object to another through the three mechanisms namely conduction, radiation and convection. a specific heat capacity b. heat transfer c. heat d. latent heat
Answer:
C. Heat transfer
Explanation:
No need explanation.
10. An 10 kg ice was turned to water vapor. how much heat is needed to do that given that specific heat of water is 4, 186 J/kg*C , Latent Heat of Fusion is 304553.36 J/kg and latent heat of vaporization is 2260000 J/kg.
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11. the degree of hotness or coldness of an object is measured in terms of its....a. latent heatb. specific heatc. temperaturethermal conductivity
Answer is "c" temperature thermal conductivity.The answer is Letter C.
12. What is the Impact latent heat on the development of tropical cyclone
Answer:
Large amounts of latent heat are released within the eyewall once the water vapor in the ascending air condenses. The net effect is a thermal expansion of the atmospheric column, leading to a pressure drop at the surface with an associated strengthened horizontal pressure gradient between the storm and the environment
13. Solve using your paper. Question An 10 kg ice was turned to water vapor. how much heat is needed to do that given that specific heat of water is 4, 186 J/kg*C , Latent Heat of Fusion is 304553.36 J/kg and latent heat of vaporization is 2260000 J/kg. PLEASE SHOW YOUR SOLUTION
Answer:
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Answer:
ay free pts po ba to salamat
Explanation:
salamat po ha
14. is latent heat related to specific heat?Why?
Answer:
Specific heat: = energy required to change a unit mass of a material by 1°C. ... Latent heat = energy required to change the state (gas, liquid, solid) of a unit mass of material. Units: energy per unit mass.15. Moist air at:31°C dry bulb, 22°C wet bulb and 1013.25. mbar barometric pressure flows over a cooler cojl and leaves it at a state of 10°C dry bulb and 7.95 g w.v./kg d.a. (a) If the air is required to offset 'a-sensible' heat gain of 2.5 kW and a "latent heat gain of 0.35 kW in a room being air-conditioned, calculate the mass of dry air which must be supplied to the room in order to maintain a dry-bulb tempera- ture of. 23.5°C inside. (b) What will be the relative humidity in the room? (c). If the sensible heat gain is diminished by 1.75 kW but the latent heat gain remains unchanged, at what temperature and moisture content must ihe air be supplied to the room?
Answer:
To solve this problem, we need to use the principles of thermodynamics and the psychrometric chart.
For part (a), we need to determine the amount of dry air that must be supplied to the room to offset the sensible and latent heat gains. The sensible heat gain is the amount of heat that is added to the air and increases its temperature, while the latent heat gain is the amount of heat that is added to the air and increases its moisture content.
To calculate the mass of dry air that must be supplied to the room, we can use the following equation:
Mass of dry air = Sensible heat gain / (Specific heat of dry air * (Final temperature - Initial temperature))
where the specific heat of dry air is the amount of heat required to raise the temperature of 1 kg of dry air by 1 degree Celsius.
Using this equation, we can calculate the mass of dry air required to offset the sensible heat gain:
Mass of dry air = 2.5 kW / (1.005 kJ/kg*K * (23.5°C - 10°C)) = 17.45 kg
To calculate the mass of dry air required to offset the latent heat gain, we can use the following equation:
Mass of dry air = Latent heat gain / (Heat of vaporization * Humidity ratio)
where the heat of vaporization is the amount of heat required to vaporize 1 kg of water at a particular temperature, and the humidity ratio is the mass of water vapor per unit mass of dry air.
Using this equation, we can calculate the mass of dry air required to offset the latent heat gain:
Mass of dry air = 0.35 kW / (2.45 x 10^6 J/kg * 0.00795 kg water vapor/kg dry air) = 14.08 kg
To determine the total mass of dry air that must be supplied to the room, we need to add the mass required to offset the sensible and latent heat gains:
Total mass of dry air = 17.45 kg + 14.08 kg = 31.53 kg
For part (b), we need to determine the relative humidity in the room. To do this, we can use the psychrometric chart to plot the state of the air at the initial and final conditions. The initial condition is 31°C dry bulb, 22°C wet bulb, and 1013.25 mbar, and the final condition is 23.5°C dry bulb and 7.95 g/kg humidity ratio.
Using the psychrometric chart, we can determine that the relative humidity in the room is approximately 50%.
For part (c), we need to determine the temperature and moisture content of the air that must be supplied to the room when the sensible heat gain is diminished by 1.75 kW.
To calculate the temperature of the air that must be supplied to the room, we can use the same equation as in part (a), but with the modified sensible heat gain:
Mass of dry air = 1.75 kW / (1.005 kJ/kg*K * (T - 10°C))
Solving this equation for T, we find that the temperature of the air that must be supplied to the room is approximately 18.5°C.
To calculate the moisture content of the air that must be supplied to the room, we can use the same equation as in part (a), but with the unchanged latent heat gain:
Mass of dry air = 0.35 kW / (2.45 x 10^6 J/kg * x)
Solving this equation for x
Explanation:
16. How is latent heat an important source of atmospheric energy?
Answer:
When the molecules return to a liquid state the latent heat is released as sensible heat (heat you can feel basically). It is important in the atmosphere because it is the primary factor involved in the formation of convective clouds and the stability/instability of the atmosphere.
17. to a ___________ . This heat energy is called the latent heat of fusion.
Answer:
sorry diko po alam answer btw ty sa points
18. Heat is supplied to a hurricane by _____________.a. Latent heat releaseb. Warm sea surface temperaturesc. Warm raind. Only a and b
Answer: The secret energy source
of a hurricane is the large latent heat of water. Air over the tropical oceans is drier than you might think. Although both the air and water may be warm and calm, evaporation can take place because the air is not at 100 percent relative humidity.
Explanation: HOPE IT'S HELP
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D. Only A and BHeat is supplied to a Hurricane by Latent Heat Release and Warm rain.
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19. what is latent heat of vaporization?
Latent heat of vaporization is a physical property of a substance. It is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure. It is expressed as kg/mol or kJ/kg. When a material in liquid state is given energy, it changes its phase from liquid to vapor; the energy absorbed in this process is called heat of vaporization. The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol.
20. Latent heat of vaporization of water from steam to water solution
Answer:
Heat of Vaporization
The heat of vaporization is defined as the amount of heat needed to turn 1g of a liquid into a vapor, without a rise in the temperature of the liquid.
From: Principles of Soil and Plant Water Relations (Second Edition), 2014
21. 1. In order for heat to be transferred between twobodies in contact, they must have differenta. Massesb. Latent heatsc. Temperature d. Specific heat
Answer:
c. Temperature
Explanation:
To facilitate heat transfer between 2 bodies there needs to be a temperature difference between them. This means that these bodies must be at 2 different temperatures, one higher than the other to allow heat to flow from one body to the other.
Answer:
C. Temperature
Explanation:
100% Sure
22. Why are the values of latent heats different for different materials?
Because the heat of vaporization is so large, steam carries a great deal of thermal energy that is released when it condenses, making water an excellent working fluid for heat engines. ... Latent heat is associated with processes other than changes among the solid, liquid, and vapour phases of a single substance.
23. how to solve for latent heat
In physics, latent heat is the heat per kilogram that you have to add or remove to make an object change its state; in other words, latent heat is the heat needed to make a phase change happen. Its units are joules per kilogram (J/kg) in the MKS (meter-kilogram-second) system.
Physicists recognize three types of latent heat, corresponding to the changes of phase between solid, liquid, and gas:
The latent heat of fusion, Lf. This is the heat per kilogram needed to make the change between the solid and liquid phases, as when water turns to ice or ice turns to water.
The latent heat of vaporization, Lv. This is the heat per kilogram needed to make the change between the liquid and gas phases, as when water boils or when steam condenses into water.
The latent heat of sublimation, Ls. This is the heat per kilogram needed to make the change between the solid and gas phases, as when dry ice evaporates.
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Here’s the formula for heat transfer during phase changes, where
image1.png
m is the mass, and L is the latent heat:
image2.png
Here, L takes the place of the
image3.png
and c (specific heat) terms in the temperature-change formula.
Suppose you’re in a restaurant with a glass of 100.0 grams of water at room temperature, 25 degrees Celsius, but you’d prefer ice water at 0 degrees Celsius. How much ice would you need? You can find the answer using the heat formulas for both change in temperature and phase change.
You get out your clipboard, reasoning that the heat absorbed by the melting ice must equal the heat lost by the water you want to cool. Here’s the heat lost by the water you’re cooling:
image4.png
T is the final temperature, and T0 is the initial temperature.
Plugging in the numbers tells you how much heat the water needs to lose:
image5.png
So how much ice would that amount of heat melt? That is, how much ice at 0 degrees Celsius would you need to add to cool the water to 0 degrees Celsius? That would be the following amount, where Lf is the latent heat of fusion for ice:
image6.png
You know this has to be equal to the heat lost by the water, so you can set this equal and opposite to
image7.png
In other words,
image8.png
“Pardon me,” you say to the waiter. “Please bring me exactly 31.0 grams of ice at precisely 0 degrees Celsius.”
24. .What happens when liquid substance turns into solid?a. It loses energy equal to its latent heat of fusion.b. It absorbs energy equal to its latent heat of fusion.c. It losses energy equal to its latent heat of vaporization.d. It absorbs energy equal to its latent heat of vaporization.
Answer:
A
Explanation:
trivia, the energy released upon the freezing(to change liquid substance into solid, freezing method can be used)it. Enthalphy fusion is a latent heat, it's exactly the same as the energy required to melt the same amount of solid. We are talking about liquid substance that turns into solid meaning to say, the liquid substance need to freeze to transform itself to solid. The latent heat are released because we are talking about freezing and not melting.
25. 5. the amount of thermal energy needed to raise the temperature of 1 kg of material by 1 degree Celsius is called the____. A. heat capacity B. specific heat capacity. C. latent heat of fusion. D. latent heat of vaporization
Answer:
b.specific heat capacity
26. in your own idea what is latent heat?
Answer:
kasunod po ay solid po ung may tuldok tuldok
hope it helps
Explanation:
Thats allll thank you
27. 1. 5 questions regarding specific heat with answer and complete solution.2. 5 questions regarding latent heat of fusion with answer and complete solution. 3. 5 questions regarding latent heat of vaporization with answer and complete solutionpa help plssss
Answer:
Questions regarding specific heat:
Question 1: A 500 g aluminum block is heated from 25°C to 75°C. If the specific heat of aluminum is 0.91 J/g°C, how much heat energy is required?
Answer:
Given:
Mass of aluminum block = 500 g
Initial temperature of aluminum block = 25°C
Final temperature of aluminum block = 75°C
Specific heat of aluminum = 0.91 J/g°C
To find:
Heat energy required
Solution:
Heat energy required = mass x specific heat x change in temperature
Change in temperature = final temperature - initial temperature
= 75°C - 25°C
= 50°C
Heat energy required = 500 g x 0.91 J/g°C x 50°C
= 22,750 J
Therefore, the heat energy required to heat the 500 g aluminum block from 25°C to 75°C is 22,750 J.
Question 2: A 2.5 kg block of copper is heated from 20°C to 80°C. If the specific heat of copper is 0.385 J/g°C, how much heat energy is required?
Answer:
Given:
Mass of copper block = 2.5 kg
Initial temperature of copper block = 20°C
Final temperature of copper block = 80°C
Specific heat of copper = 0.385 J/g°C
To find:
Heat energy required
Solution:
Convert mass to grams:
Mass of copper block = 2.5 kg x 1000 g/kg
= 2500 g
Change in temperature = final temperature - initial temperature
= 80°C - 20°C
= 60°C
Heat energy required = mass x specific heat x change in temperature
= 2500 g x 0.385 J/g°C x 60°C
= 57,750 J
Therefore, the heat energy required to heat the 2.5 kg copper block from 20°C to 80°C is 57,750 J.
Question 3: How much heat energy is required to raise the temperature of 1 liter of water from 20°C to 90°C? The specific heat of water is 4.18 J/g°C.
Answer:
Given:
Volume of water = 1 L
Initial temperature of water = 20°C
Final temperature of water = 90°C
Specific heat of water = 4.18 J/g°C
To find:
Heat energy required
Solution:
The mass of water can be calculated using its density:
Density of water = 1 g/mL
Mass of water = volume x density
= 1 L x 1000 g/L
= 1000 g
Change in temperature = final temperature - initial temperature
= 90°C - 20°C
= 70°C
Heat energy required = mass x specific heat x change in temperature
= 1000 g x 4.18 J/g°C x 70°C
= 293,200 J
Therefore, the heat energy required to raise the temperature of 1 liter of water from 20°C to 90°C is 293,200 J.
Question 4: How much heat energy is required to melt 500 g of ice at 0°C? The latent heat of fusion of ice is 334 J/g.
Answer:
Given:
Mass of ice = 500 g
Latent heat of fusion of ice = 334 J/g
To find:
Heat energy required
Solution:
Heat energy required to melt ice = mass x latent heat of fusion
= 500 g x 334 J/g
= 167,
28. If a body receives heat, its temperature increases. Can it be said that this is latent heat? Explain.
#BrainlyFast
Problem:
If a body receives heat, its temperature increases. Can it be said that this is latent heat?
Answer:
No, Latent heat is associated in the change of physical state like changing solid to liquid with no change in temperature. Increasing temperature is already a change in temperature therefore it is not considered to be a latent heat.
A very good example of latent heat is when the kettle or pot of water is kept boiling in which its temperature remains the same at boiling point which is 100°C. The temperature is or heat is absorbed by the liquid particle and escape from hydrogen bonding or turn into gas and carried away during vaporization.
Water molecule are bonded together by hydrogen bond. Water molecule are attracted by each other keeping them intact. When this bond breaks, water molecule becomes free and turns into gas and can freely move unlike with liquid particle.
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brainly.ph/question/1935400
29. Define the term latent heat of fusion
Definition of latent heat of fusion. The amount of heat required to change 1 g of a substance at the temperature of its melting point from the solid to the liquid state without changing temperature.
the heat absorbed by a unit mass of a givensolid at its melting point that completelyconverts the solid to a liquid at the sametemperature: equal to the heat ofsolidification.
30. examples of latent heat of sublimation
Answer:
The latent heat of sublimation at a particular temperature is the amount of heat required to convert a unit mass of solid into gas. For example, when ice sublimates into vapor, the amount of heat required at 0°C is estimated equal to 2,838 kJ/kg, which is the latent heat of sublimation of ice at 0°C.