Question
In thermodynamics, the P - V work done is given by w = - ∫ dVP ext . For a system undergoing a particular process, the work done is, w = - ∫ dV RT V - b - a V 2 . This equation is applicable to a
JEE Advanced
Chemistry
Thermodynamics (C)
2020
JEE Advanced 2020 (Paper 1)
JEE Advanced Chemistry Question (2020) — Solution
Options
- A. system that satisfies the van der Waals equation of state.
- B. process that is reversible and isothermal.
- C. process that is reversible and adiabatic.
- D. process that is irreversible and at constant pressure.
Answer
C. process that is reversible and adiabatic.
Step-by-step solution
\(W=- P_ ext d v\) From van der waal equation of state for one mole gas \(p+ a v^ 2 (v-b)= RT \) \(p= RT (v-b) - a v^ 2 \) For reversible process \(p_ ext =p_ gas \) \(W=- RT (v-b) - a v^ 2 \) process is only not applicable for irreversible process.
Related: Chemistry — Thermodynamics (C) · All PYQ Banks