Question
Why the gases have infinite number of specific heats?
Solution
The quantity of heat which is required to raise the temperature of one mole of gas through one degree Celsius is called the specific heat of a substance.
This heat supplied to gas is not only used to increase the temperature of gas but also used to expand it.
Heat required to increase the temperature of the gas by 1°C is a constant quantity. But the heat required to expand it depends on the manner in which it is heated. That is why gases have infinite number of specific heats depending on the manner in which it is heated up.