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NEET2008ChemistryThermodynamics (C)Actual

If a gas expands at constant temperature, it indicates that

Options

  1. Akinetic energy of molecules decreases
  2. Bpressure of the gas increases
  3. Ckinetic energy of molecules remains the same
  4. Dnumber of the molecules of gas increases

Correct answer

C. kinetic energy of molecules remains the same

Step-by-step solution

Key Idea : gathered K E= 3 2 R T KE T gathered Here, the temperature of gas remains constant, hence kinetic energy of molecules remains the same.

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