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JEE PYQ: Thermodynamics Question 15

Question 15 - 2020 (08 Jan Shift 1)

The magnitude of work done by a gas that undergoes a reversible expansion along the path $ABC$ shown in the figure is ___.

P-V diagram with path ABC: A at (2, 8), B at (10, 8) isobaric, then BC drops to C at (12, 2)

Show Answer

Answer: 48

Solution

Work done is given by the area under the trapezium. $|w| = \frac{1}{2}(6 + 10) \times 6 = 48$ J.


Learning Progress: Step 15 of 40 in this series