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MHT CET202016 Oct 2020Evening ShiftChemistryThermodynamics (C)Actual

Work done when 2 mol of an ideal gas is compressed from a volume of 5 ~m ³ to 2 5 ~m ³ at 300 ~K , under a pressure of 100 k pa is

Options

  1. A497.5 ~kJ
  2. B99.50 ~kJ
  3. C248.7 ~kJ
  4. D49 75 ~kJ

Correct answer

A. 497.5 ~kJ

Step-by-step solution

=-499 KJ n =2 moles V ₁=5 ~m ³ ~V ₂=1 dm ³=10⁻² ~m ³ ~T ₁=300 ~K P =100 KP _ a =10⁵ P _ a work done =- P V =-10⁵ ( ~V ₂- V ₁ ) =-10⁵ (10⁻²-5 ) work done =-499 KJ

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