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Question
The net amount of work done in the given indicator diagram is
The net amount of work done in the given indicator diagram is
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Solution
The correct option is C positive
Work done by a gas is given by:
w=∫PdV
With basic calculus we see that for a closed (cyclic) loop, a clock wise path gives positive work = Area of the loop. An anti clockwise loop gives negative work, whose magnitude is the area of the loop.
In this case, we see two loops with clockwise path. Hence the work done is positive.
Work done by a gas is given by:
w=∫PdV
With basic calculus we see that for a closed (cyclic) loop, a clock wise path gives positive work = Area of the loop. An anti clockwise loop gives negative work, whose magnitude is the area of the loop.
In this case, we see two loops with clockwise path. Hence the work done is positive.
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