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110 joules of heat is added to a gaseous system, whose internal energy is 40j; then the amount of external work done is (a) 150 J (b) 70 J (c) 110 J (d) 40 J



110 joules of heat is added to a gaseous system, whose internal energy is 40j; then the amount of external work done is


        (a)    150 J


        (b)    70 J


        (c)    110 J


        (d)    40 J


Grade:10

1 Answers

Simran Bhatia
348 Points
8 years ago

(b)

DQ = DU + DW

Þ DW = DQ - DU = 110 - 40 = 70 J

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