Question

Heat given to a systen is 35 J and the work done by the system is 15 J. The change in the internal energy of the system will be?​

Answer 1

Answer:

here given that heat (Q=35 joules) it is positive.work done ( W=+15joules).internal energy (U=?).answer is=20 joules.

Explanation:

dq=du+dw.so 35=du+15=20. so du= 20 joules.

Answer 2

Answer:

20joules

Explanation:

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