Advertisements
Advertisements
प्रश्न
Explain the term boiling ?
उत्तर
Boiling : The change from liquid to gaseous phase on heating at a constant temperature is called boiling.
APPEARS IN
संबंधित प्रश्न
A geyser heats water flowing at the rate of 3.0 litres per minute from 27 °C to 77 °C. If the geyser operates on a gas burner, what is the rate of consumption of the fuel if its heat of combustion is 4.0 × 104 J/g?
A copper vessel of mass 100 g contains 150 g of water at 50°C. How much ice is needed to cool it to 5°C?
Given: Specific heat capacity of copper = 0.4 Jg-1 °C-1
The Specific heat capacity of water = 4.2 Jg-1 °C-1
The Specific latent heat of fusion ice = 336 Jg-1
During the phase change does the average kinetic energy of the molecules of the substance increase?
Name three fossil fuels that emit carbon dioxide into the atmosphere ?
1 kg of water freezes to form ice at 0°C. What amount of heat is withdrawn?
Describe a method to determine the specific heat capacity of a solid (say, a piece of copper).
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)
If 'f' is the number of degrees of freedom of a molecule of a gas and ratio of molar specific heats of a gas, ϒ = 1 + `2/"f"` where ϒ = Cp/Cv. The ratio of 'ϒ' for monoatomic gas to 'ϒ' for (rigid) f diatomic gas is ______.
Why is water used as a coolant in radiators of a car?
To study energy exchange between hot and cold objects, the system of both objects is isolated from the environment by keeping them inside ______.
