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If the amount of heat given to a system is 35 J and the amount of work done by the system is -15J and the amount of work done by the system is -15J, then the change in the internal energy of the system is?

If the amount of heat given to a system is 35 J and the amount of work done by the system is -15J and the amount of work done by the system is -15J, then the change in the internal energy of the system is? Correct Answer 50J

∆Q=∆U+∆W 35=∆U+15 ∆U=35+15=50J.

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