HARDMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and ThermochemistryAchiever Section
A liquid which is confined inside an adiabatic piston is suddenly taken from state 1 to state 2 by a single stage process. If the piston comes to rest at point 2 as shown. Then the enthalpy change for the process will be : (a) 2 P V H (b) 3 P V H
C.H = – P₀ V₀✓ Correct
D.None of these
Explanation
It is an adiabatic process, U Q W U W W P V ext Now at point 2 the piston comes to rest, so P P ext 0 o o o o o o o o o o o o o o o U W P 4V V 3P V H U PV W 4P V 2P V 3P V 2P V H P V
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