Physics Thermodynamics Heat, Carnot Engine, Refrigerator and Second Law of Thermodynamics Single Correct MCQ
Published on: September 12, 2026

A measure of the degree of disorder of a system is known as

A
Isobaric
B
Isotropy
C
Enthalpy
D
Entropy

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Text Solution

Verified by Experts
The correct answer is:
D
Step 1: Understand the definitions of the terms given in the options.
  • Isobaric: This term refers to processes occurring at constant pressure.
  • Isotropy: This term describes uniformity in all directions.
  • Enthalpy: This is a measure of the total energy of a thermodynamic system, including internal energy and the energy required for volume and pressure.
  • Entropy: This is the measure of the degree of disorder or randomness in a system.
Step 2: Analyze the question. The question specifically asks for a term that measures disorder.
Step 3: From the definitions, it is clear that entropy is the correct measure of disorder in a system.
Therefore, the correct answer is option D: Entropy.

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