JEE · NEET Previous Year Question

If and represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true?

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

  1. A, in an adiabatic process
  2. B, in an isothermal process
  3. C, in an adiabatic process
  4. D, in an isothermal process

Correct answer: A

Solution

(a) According to first law of thermodynamics

where,
Heat supplied to the system
Increase in internal energy of the system Work done by the system
For an adiabatic process

For an isothermal process

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