The GATE Grind

GATE Thermodynamics and Statistical Mechanics: first and second order phase transitions, phase equilibria, critical phenomena. – Previous Year Questions

2 GATE previous year questions on first and second order phase transitions, phase equilibria, critical phenomena. (Thermodynamics and Statistical Mechanics, Physics) with answers and explanations, from every paper.

  1. GATE 2025 PH Q26 (1 mark, Multiple select) – A schematic Pressure-Temperature diagram of water is shown in the figure. Which of the following option(s) is/are correct?
  2. GATE 2024 PH Q33 (1 mark, Numerical answer) – Solid ammonia vapor pressure obeys P=23.03-3754/T, and liquid ammonia obeys P=19.49-3063/T, with T in kelvin. The triple-point temperature in K (two…