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  • A system does of work and at the same time absorbs <img alt="150 \mathrm{~J}" src="https://entrancecorner.codecogs.com/gif.latex?150%20%5Cmathrm%7B

A system does 200 \mathrm{~J} of work and at the same time absorbs 150 \mathrm{~J} of heat. The magnitude of the change in internal energy is_______\mathrm{J}. (Nearest integer)
 

Answers (1)

best_answer

Given,

q= 150J

w= -200J

\Delta U= ?

As we have learnt in First Law of Thermodynamics,

q+w= \Delta U

\Rightarrow \Delta U= 150-200= -50J

Hence, the answer is 50

Posted by

sudhir.kumar

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