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NEETChemistryThermodynamics (C)

An ideal gas is allowed to expand against a constant pressure of 2 bar from 10 L to 50 L in one step. Calculate the amount of work done by the gas. If the same expansion were carried out reversibly, will the work done be higher or lower than the earlier case? (Given that 1 L bar = 100 J)

Options

  1. Aw = – 10 kJ and work done will be more in the reversible expansion
  2. Bw = – 8 kJ and work done will be less in the reversible expansion
  3. Cw = – 9 kJ and work done will be more in the reversible expansion
  4. Dw = – 8 kJ and work done will be more in the reversible expansion

Correct answer

D. w = – 8 kJ and work done will be more in the reversible expansion

Step-by-step solution

Correct Option is : (D) w = – 8 kJ and work done will be more in the reversible expansion

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