Question

drive the expression for work done in reversible and irreversible process​

Answer 1

1. in irreversible isothermal expansion, formula for work done is W=P(external)x change in volume. ...
2. in irreversible isothermal expansion, formula for work done is W=P(external)x change in volume. ... For an irreversible expansion process, a crude approximation to the force exerted by the gas on the piston (where the work is done) can be provided by the equation FA=Pext=nRTV−kVdVdt.