The amount of heat absorbed to change a substance from liquid to vapour …………..

The amount of heat absorbed when a substance melts ………

The amount of heat released when a substance changes from gas to liquid ……………

The amount of heat absorbed to change 1 kg of water to vapour ……….

Fill in the blank spaces by choosing the correct words from the list given below: latent heat of fusion, melting point, steam, constant, latent heat of vaporisation. The amount of heat required to change 1 g of a substance at its melting point into liquid state without any rise in temperature is called specific_________.

Fill in the blank spaces by choosing the correct words from the list given below: latent heat of fusion, melting point, steam, constant, latent heat of vaporisation. The amount of heat required to change 1 g of a liquid into its gaseous state without and rise in temperature is called specific ___________.

A solid material is supplied with heat at a constant rate. The temperature of the material is changing with heat input as shown (i) AB: change of state from solid to liquid. CD: change of state from liquid to vapour (ii) When CD=2AB , i.e., latent heat of vapourization is twice the latent heat of fusion of the substance. (iii) The reciprocal of slope of DE represents the heat capacity of vapour state of substance . (iv) If slope of OAgt slope of BC, i.e., specific heat of liquid state is greater than specific heat that of solid state.

The amount of heat absorbed or released when a unit mass changes its state ……….

The amount of heat energy absorbed by 1 kg of water to change into water vapour is …………….

The amount of heat required to change the state of 1 kg of substance at constant temperature is called

The amount of heat energy Q, used to heat up a substance depends on its mass m its specific heat capacity (s) and the change in temperature DeltaT of the substance. Using dimensional method, find the expression for s is ( Given that [S]=[L^2 T^(-2)K^(-1)] ) is