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NEET UG CHEMISTRY MCQ: THERMODYNAMICS
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Select the correct set of statements considering initial state to be same and final state at same volume in case of comparison.
(I) Magnitude of Work done on the surrounding in case of infinite step expansion is more than single stage expansion for an isothermal process.
(II) Irreversible work is always greater than reversible work for an isothermal process. (with sign)
(III) On an ideal gas in case of single stage expansion and compression, system as well as surrounding are restored back to their original states.
(IV) If gas in thermodynamic equilibrium is taken from state A to state B, by four successive single stage expansions. Then we can plot maximum 4 points on the indicator diagram.
(I) Magnitude of Work done on the surrounding in case of infinite step expansion is more than single stage expansion for an isothermal process.
(II) Irreversible work is always greater than reversible work for an isothermal process. (with sign)
(III) On an ideal gas in case of single stage expansion and compression, system as well as surrounding are restored back to their original states.
(IV) If gas in thermodynamic equilibrium is taken from state A to state B, by four successive single stage expansions. Then we can plot maximum 4 points on the indicator diagram.
View answer and explanation
Correct option: A
I, II only
Option A (I, II only) is correct. Work done is greater in multistep expansion than single-step, and irreversible work is greater than reversible work (with sign).
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