Phase transitions — CSIR Net PYQ (Question 2)

A Phase transitions previous-year question (PYQ) from Thermodynamics (CSIR Net). Read the question, check the correct answer, then practise the full topic.

Question 2 of 6 · 3.5 marks

The condition for the liquid and vapour phases of a fluid to be in equilibrium is given by the approximate equation $\frac{dP}{dT}\approx \frac{Q_l}{T{v}_{vap}}$ (Clausius-Clayperon equation), where $v_{vap}$ is the volume per particle in the vapour phase, and $Q_l$ is the latent heat, which may be taken to be a constant. If the vapour obeys ideal gas law, which of the following plots is correct?

1. 1
2. 2
3. 3
4. 4

Correct answer: Option 1&3

About this question

This Phase transitions PYQ is part of the Thermodynamics section of CSIR Net. Browse more Phase transitions questions or join the PhysicsByAaryan live batch for full conceptual coverage.