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Questions  

Work done by air when it expands from 100 litres to 200 litres at a constant pressure of 2 atmosphere is
 

a
2×105J
b
2×104J
c
2.5×104J
d
2.5×105J

detailed solution

Correct option is B

W=PΔUW=2×105[200−100]×10−3W=2×104J

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