NTA Abhyas JEE Main2020ChemistryThermodynamics (C)Practice

The efficiency of the reversible cycle shown in the figure will be

Options

A33.33%
B56%
C66%
D25%

Correct answer

D. 25%

Step-by-step solution

Efficiency of cycle = Area of closed cycle Area of under the curve × 100 = 1 2 × ( 1500 - 1000 ) × ( 250 - 150 ) 1 2 × ( 1500 - 1000 ) × ( 250 - 150 ) + ( 1500 - 1000 ) × ( 150 - 0 ) × 100 = 1 2 × 500 × 100 1 2 × 500 × 100 + 500 × 150 = 500 × 50 × 100 500 × 50 + 500 × 150 = 25 .

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