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NEET2011PhysicsThermodynamicsActual

During an isothermal expansion, a confined ideal gas does 150 ~J of work against its surroundings. This implies that

Options

  1. A300 ~J of heat has been added to the gas
  2. Bno heat is transferred because the process is is othermal
  3. C150 ~J of heat has been added to the gas
  4. D150 ~J of heat has been removed from the gas

Correct answer

C. 150 ~J of heat has been added to the gas

Step-by-step solution

By first law of thermodynamics - aligned dQ & = dV + dW dV & =0 for isothermal process dQ & = dW & =+150 aligned 150 ~J of heat has been added to the system. So, the correct answer is ' 150 ~J of heat has been added to the gas'.

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