Question

Derivation of work done in isothermal reversible expansion...!plz class 11 chemistry thermodynamics

Answer 1

Answer:

Derivation of work done in isothermal reversible expansion

dW=P×A×dl

=P×dV

The amount of work done by isothermal reversible expansion of an ideal gas from V 1to V2 is

W =∫ V2 to v1 Pdv

for ideal gas equation P = nRT/V

hence W = ∫ v2 to v1 nrt/v DV

on intregation we get

W = nRT ln V2/V1

since P1V1 = P2V2

P1/P2 = V2/V1

W = nRT ln P1/P2

hope it will help you......