Question

In a certain process 400j of heat are supplied to a system and at the same time 150j of work are done by the system. What is the increase in the internal energy of the system

Answer 1

HERE IS YOUR ANSWER FREIND

Answer : 550J

Explanation :

dQ=du+dw (By sign convention)

dQ=+400Jquad (Heat absorbed is positive )

dw=−150J (heat given out is negative )

du=dQ−dw (Work done by the system is positive)

=400−(−150) (Work done on the system is negative )

=550J

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