AIIMS2012Physics-Thermodynamics
AIIMS 2012 Physics First Law of Thermodynamics MCQ Question
Type: MCQ-numerical-Medium-Class 11
An ideal gas is taken through the cycle A → B → C → A, as shown in figure. If the net heat supplied to the gas in the cycle is 5 J the work done by the gas in the process A → B is
A
2 J
B
3 J
C
4 J
D
5 J
Correct Answer
Option B
Detailed Explanation
Process B -> C occurs at constant volume Hence, W_BC = 0 Process C -> A occurs at constant process. Hence the work done in the process is W_CA = PΔV = (1)(V_A - V_C) = (1)(4 - 2) = 2 J
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