Question

what is the numerical value of the specific heat of a gas in first isothermal process and second adiabatic process give reason for your answer

Answer 1

The heat capacity is a property that defines how much energy is saved in a material for a given change of temperature. For a isothermal process temperature change is zero, so specific heat must be infinity.

the adiabatic process is the number of degrees of freedom (3 for monatomic gas, 5 for diatomic gas and collinear molecules e.g. carbon dioxide).