Dear student,
1. The amount of heat energy required to raise the temperature of a given mass of a substance through 1 degree Celsius is called Heat Capacity. It is denoted by . It's unit is or .
2. The heat energy required to convert 1 gram of ice at its melting point into its liquid form without any rise in temperature is called Latent Heat of Fusion of Ice(). It's unit is .
3. The heat energy required to raise the temperature of 1gram of a substance through 1 degree Celsius is called Specific Heat Capacity.
It's unit is , and is denoted by .
Regards