Question:

11.0 L of an ideal gas at constant external pressure of 5 atm is compressed isothermally to a final volume of one liter. The heat absorbed and work done respectively, during this compression (in L atm) are

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In isothermal processes, the heat change is equal in magnitude and opposite in sign to work: \( q = -W \).
Updated On: May 15, 2025
  • -50, -50
  • 50, -50
  • -50, 50
  • 50, 50
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The Correct Option is C

Solution and Explanation

Work done, \( W = -P_{\text{ext}} \Delta V = -5 (1 - 11) = -5 \times (-10) = 50\ \text{L atm} \)
Since the process is isothermal for an ideal gas: \( q = -W = -50\ \text{L atm} \)
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