What is specific latent heat used for?
The specific latent heat of a substance is the amount of energy needed to change the state of 1 kg of the substance without changing its temperature. Each substance has two specific latent heats: latent heat of fusion (the amount of energy needed to freeze or melt the substance at its melting point)
How is latent heat used in real life?
Daily life is filled with examples of latent and sensible heat: Water has a high latent heat of fusion, so turning water into ice requires the removal of more energy than freezing liquid oxygen into solid oxygen, per unit gram. Latent heat causes hurricanes to intensify.
What are the applications of latent heat?
The specific latent heat of vaporisation for water is large. Plates filled with food are able to absorb heat from the hot steam. The condensation of steam at the base of the plate releases a large quantity of heat and thus enables food such as cakes,fish, eggs and others to be steamed.
What real world applications does specific heat have?
Answer Expert Verified
- Utensils used for making tea or coffee, or cooking vegetables or rice are made of materials of low specific heat.
- Materials of high specific heat can be used as insulators.
- The handles of utensils at home are made of materials which have very high specific heat.
What is specific latent heat formula?
Here is the formula: Eh = m x l. Eh means energy, equals m for mass, times l. l is the specific latent heat of fusion for that material. So the formula tells us how much heat energy is needed to go into a material to change it from a solid to a melted liquid.
How do you describe latent heat?
latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature.
What is the best explanation of latent heat?
What is latent heat Class 9?
The heat energy which has to be supplied to change the state of a substance is called its latent heat. Latent heat does not raise (or increase) the temperature. But latent heat has always to be supplied to change the state of a substance .
What is a real life example of high specific heat?
Water has the highest specific heat of any liquid. It requires 4.184 Joules to raise the temperature of one gram of water by one degree Celsius. This is the most energy required to raise a liquid by one degree. Water’s high specific heat is very useful to life.
Why is specific heat important to life?
A high specific heat of a substance means that a large amount of heat is required to raise the temperature of the substance. A relatively constant temperature without spikes and drops is essential to sustain life, as most organisms require temperatures to remain within a narrow range for their survival.
Which is an example of a specific latent heat?
The equation for specific latent heat is: 1. Sweating Causes Cooling 2. Earthen Pot 3. Dumplings (Momo) 4. Ice Cream 5. Drinking Bird Toy 6. Regelation 7. Pressure Cooker 8. Geysers 9. Ice-Skating Rinks Sensible heat is a term used in contrast to latent heat.
How to calculate the specific latent heat of fusion?
………………………………………………………………………………………………………. (iv) If 1.5 kg of the substance was used, use your answer to part (ii) to calculate the specific latent heat of fusion for this substance.
How to learn more about latent heat and phase changes?
To learn more about latent heat and phase changes, review the accompanying lesson titled Latent Heat: Definition, Formula & Examples. This lesson covers the following objectives: Enrolling in a course lets you earn progress by passing quizzes and exams.
How to calculate the specific heat capacity of water?
Calculate the specific heat capacity of water if the thermal capacity of the beaker is negligible. mcΔθ = Q = Pt 0.725 × c × (100 − 20) (1 mark) = 2000 ×120 (1 mark) c = 4100 (1 mark)J kg−1(1 mark) (4 marks) (b) The student in part (a) continues to heat the water so that it boils for 105 s. When the mass
