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MHT CET 2025 (21 Apr, Shift 2) · Thermodynamic Processes

Thermodynamic Processes question from MHT CET 2025 (21 Apr, Shift 2)

Q59MHT CET 2025 · 21 APR · SHIFT 2Easy

Thermodynamic Processes

Heat is given to an ideal gas in an isothermal process. Then

A. internal energy of the gas will decrease.

B. internal energy of the gas will increase.

C. internal energy of the gas will not change.

D. the gas will do negative work.

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Answer: (b)

  1. Isothermal: ΔT=0⇒ΔU=0\Delta T = 0 \Rightarrow \Delta U = 0 (C true, A and B false).
  2. Q=WQ = W; heat given means Q>0Q > 0, so the gas does positive work (D false).
  3. So the answer is (b) C.
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