SOLUTION

The prefix iso- is often used to designate a process for which a particular property remains constant.

An isothermal process is a process during which the temperature T remains constant; an isobaric process is a process during which the pressure P remains constant, and an isochoric (or isometric) process is a process during which the specific volume (V) remains constant.

For constant volume or Isochoric process work done is given by,

Since for isochoric process, we know that, dV = 0

So, W = 0 for the Isochoric process.