During the change of state the heat is

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. During the change of state of a substance its temperature remains___________.

Which of the following energy is absorbed during the change of state of a substance ?

(a) What do you understand by the change of phase of a substance ? (b) Is there any change in temperature during the change of phase ? (c) Does the substance absorb or liberate any heat energy during the change of phase ? (d) What is the name given to the energy absorbed during a phase change ?

Types: A Q= mcDelta (Heat energy during change in temperature) Q = mL (Heat energy during change of state ) Note : Specific heat capacity (c) =1 cal // g^(@)C = 1 kcal // kg^(@) C Delta T = Higher temperature - Lower temperature . How much heat energy is necessary to raise the temperature of 5kg of water form 20^(@) C to 100^(@) C.