10. Work done by a system under isothermal change from a

volume V₁ to V₂  for a gas which obeys Vander Waal’s equation (V – βn)[ P + (αn²/v)= nRT

(a)   nRT log_e( V₂ – nβ/V₁–  nβ) + α n²(V₁ -V₂)/V₁V₂

(b)  nRT log₁₀ ( V₂ – αβ/V₁–  αβ) + α n²(V₁ -V₂)/V₁V₂

(c)  nRT log_e ( V₂ – nα/V₁–  nα) + β n²(V₁ -V₂)/V₁V₂

(d) nRT log_e ( V₁ – nβ/V₂ –  nβ) + α n²  (V₁V₂/ (V₁ -V₂)

Ans. a

(10)