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CGP EDU Academic Team
Published on: August 14, 2026
10 litres of a monoatomic ideal gas at 0°C and 10 atm pressure is suddenly released to 1 atm pressure and the gas expands adiabatically against this constant pressure. The final volume (L) of the gas.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(64 L )
This is adiabatic irreversible process so, for this process
PV γ = Constant, is not applicable
W = – P ext (V 2 – V 1 )
But for adiabatic process
W = dU = 
PV = nRT 
10 × 10 = n × 0.082 × 273 n = 4.47 moles
– P ext (V 2 – V 1 ) = 
– 1 × (V 2 – 10) = 
(10 – V 2 ) = 
6.7 – 0.67 V 2 = V 2 – 100
106.7 = 1.67 V 2 
V 2 = 64
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