Question Bank MCQ • 1 Mark Section 5: Thermodynamics & Statistical Physics Phase transitions

QB_PH_145: Phase transitions

Question Statement

In zero applied magnetic field, the normal-to-superconducting transition at $T_c$ is:
(A) Second-order with zero latent heat and a discontinuity in heat capacity
(B) First-order with latent heat
(C) Third-order
(D) Non-equilibrium
Correct Answer
A
Verified Key

Step-by-Step KaTeX Derivation & Detailed Explanation

### Solution: At $B = 0$, there is no latent heat, but $C_p$ exhibits a finite jump discontinuity.
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