A diatomic gas is used in carnot heat engine having efficiency 80 %. Find the ratio of initial volume to final volume of gas during adiabatic expansion.

Question

A diatomic gas is used in carnot heat engine having efficiency 80 %. Find the ratio of initial volume to final volume of gas during adiabatic expansion., 1 5 3 2, 1 3 5 2, 1 5 5 2, 1 5 2 5

MARKS App · Accepted Answer

η = 1 - T 2 T 1 0 . 8 = 1 - T 2 T 1 T 2 T 1 = 0 . 2 T 2 V 2 γ - 1 = T 1 V 1 γ - 1 V 2 V 1 γ - 1 = T 1 T 2 = 5 V 1 V 2 = 1 5 5 2

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