> The number of specific heats that a gas can have is? Which of the following three options is correct? 
> 
>1. Only one. 2. Only two. 3. Infinite

We know that a gas has two specific heats - $C_p$ (Specific heat at constant pressure) and $C_v$ (Specific heat at constant volume). I answered option 2 but the correct option according to the question paper solution is option 3. 

So, why does a gas have infinite number of specific heats and how do I conceptualise this? Is each specific heat realted to a unique thermodynamic process?