Paper: CSIR-NET December 2018 · Subject: Physical Chemistry · Chapter: Thermodynamics · Topic: Thermodynamics – General · Marks: 2 · Difficulty: Medium
The volume change in a certain phase transition is $2.0 \mathrm{mL} \mathrm{mol}^{-1}$ at the transition point. From this, we may conclude that the transition is most likely to
(a)First order phase transition
(b)Second order phase transition
(c)Third order phase transition
(d)1 phase transition
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
A non-zero ΔV (a discontinuity in ∂G/∂p) at the transition is the signature of a first-order transition.