Physics Circle home Student Login

Home›Chapters›Thermodynamics PYQs›Thermodynamic Processes›Question 11

JEE Main 2026 (5 Apr, Shift 1) · Thermodynamic Processes

Thermodynamic Processes question from JEE Main 2026 (5 Apr, Shift 1)

Q11JEE Main 2026 · 5 APR · SHIFT 1Medium

Thermodynamic Processes

Consider the following statements:

A. Zeroth law of thermodynamics gives concept of temperature

B. First law of thermodynamics gives concept of internal energy

C. In isothermal expansion of ideal gas, ΔQ≠ΔW\Delta Q \neq \Delta W

D. Product of intensive and extensive variables is extensive

E. The ratio of any extensive variable to mass will be an extensive variable

Choose the correct combination of statements from the options given below:

Show answer and solution

Answer: (c)

  1. A: true, the zeroth law defines temperature. B: true, the first law introduces internal energy.
  2. C: false, isothermal ideal gas has ΔU=0\Delta U = 0, so ΔQ=ΔW\Delta Q = \Delta W.
  3. D: true, e.g. density ×\times volume = mass (extensive).
  4. E: false, extensive/mass (e.g. V/mV/m) is intensive.
  5. So the answer is (c) A, B and D only.
Report a mistake

More questions on Thermodynamic Processes