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MHT CET202211 Aug 2022Morning ShiftChemistryThermodynamics (C)Actual

An ideal gas is allowed to expand from 2 dm ^3 to 6 10⁻³ ~m ^3 against a constant external pressure of 1 bar. The work done in kJ is

Options

  1. A-6.0 kJ
  2. B-0.4 kJ
  3. C-4.0 kJ
  4. D-2 kJ

Correct answer

B. -0.4 kJ

Step-by-step solution

aligned W & =- P ( V ₂- V ₁ ) & =- (6 10⁻³-2 10⁻³ ) bar - m ^3 & =-4 10⁻³ 10^5 N m ^2 - m ^3 & =-400 ~J =-0.4 KJ aligned

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