Why the gases have infinite number of specific heats?

Specific heat is the quantity of heat required to raise the temperature of one mole of gas by one degree Celsius.
This heat supplied to the gas is used to expand the gas apart from increasing the temperature. The heat required to expand the gas depends on the manner in which heat exchange takes place or heating is done. 
Therefore, gases have an infinite number of specific heats depending on the manner in which it is heated up.