Question

derive the expression for maximum work done in reversible expansion​

Answer 1

Answer:

In the reversible process, P ext is always less than the pressure of the gas, by an infinitesimally small quantity. W = (P – dp) dV. In the equation W tends to the maximum as (P – dp) tends to P or dp tends to zero. Therefore work done in an isothermal reversible expansion of an ideal gas is maximum work.