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GATE 2025 MT – Question 15

Metallurgical Thermodynamics · Solutions and chemical potential · 1 mark · Multiple choice

Which one of the following is an intensive property?

  1. Chemical potential
  2. Volume
  3. Mass
  4. Entropy

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Correct answer: (A) Chemical potential

Explanation

Chemical potential is the partial molar Gibbs free energy, μi=(∂G/∂ni) at fixed T,P and other amounts. Scaling the whole system does not change it. Mass, volume and total entropy scale with system size and are extensive. Therefore **A**.