Question

Is the isochoric process reversible?

Answer 1

Explanation:

Isochoric process: An isochoric process is a thermodynamic process that occurs at a constant volume, It is also known as a constant-volume process or an isometric process, the word "isochoric" comes from the Greek words "iso" and "choric", meaning "constant" or "equal" and "space" or "volume", respectively.

1. An isochoric process is one for which,${\mathrm{V}}_{\mathrm{f}}={\mathrm{V}}_{\mathrm{i}}(\mathrm{v}∆=0,\mathrm{dv}=0)$
2. The work done in such a process is zero (since $\mathrm{dW}=\mathrm{P}\mathrm{dV}=0$ when $\mathrm{V}$ is constant). The first law of thermodynamics explains this.
3. $\mathrm{dQ}=\mathrm{dU}$ (isochoric process)
4. The increase or decrease in the internal energy of the system is also equal to the total heat supplied or rejected.
5. It is to be reversible the system must be in thermal equilibrium at all times, and the heat supply must be mostly quasi-static.

Hence, the isochoric process is reversible.