The GATE Grind

GATE 2026 MT – Question 20

Metallurgical Thermodynamics · Thermodynamic laws and functions · 1 mark · Multiple choice

Which one of the following is NOT a state function?

  1. Enthalpy
  2. Entropy
  3. Work
  4. Internal Energy

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (C) Work

Explanation

Internal energy, enthalpy and entropy depend only on the equilibrium state, so their changes are independent of the path. Work depends on the process path, for example the pressure–volume trajectory, and is therefore a transfer quantity rather than a state function. **Work, C**.