Advertisements
Advertisements
प्रश्न
It is generally cold after a hail-storm then during and before the hail storm. Give reason.
उत्तर
The reason is that after the hail storm, the ice absorbs the heat energy required for melting from the surrounding, so the temperature of the surrounding falls further down and we feel colder.
APPEARS IN
संबंधित प्रश्न
Water in lakes and ponds do not freeze at once in cold countries. Give a reason is support of your answer.
What is carbon tax?
A liquid X has specific heat capacity higher than the liquid Y. Which liquid is useful as coolant in car radiators.
Will the value of specific heat’capacity and specific latent heat of a substance change if the scale is °F instead of °C?
A vessel of negligible heat*capacity contains 40g of ice in it at 0°C, 8g of steam at 100°C is passed into the ice to melt it. Find the final temperature of the contents of the vessel.
(Specific latent heat of vaporization of steam = 2268 J/g, specific latent heat of fusion of ice = 336 J/f and specific heat capacity of water = 4.2 J/g°C)
Derive Mayer’s relation.
All metals have the same specific heat capacity.
Numerical Problem.
What is the heat in joules required to raise the temperature of 25 grams of water from 0°C to 100°C? What is the heat in Calories? (Specific heat of water = `(4.18"J")/("g"°"C")`
Explain why the specific heat capacity at constant pressure is greater than the specific heat capacity at constant volume.
Observe the following diagram and answer the questions given below:
Specific heat capacity of metals
- Which element has maximum specific heat capacity? Justify.
- Which element has minimum specific heat capacity? Justify.
- Define specific heat of object.
