Compute the change in internal energy of the system

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Reference no: EM13225935

For the following processes, calculate the change in internal energy of the system and determine whether the process is endothermic or exothermic:

(a) A balloon is heated by adding 850 J of heat. It expands, doing 382 J of work on the atmosphere.

(b) A 50-g sample of water is cooled from 30 degrees Celcius to 15 degrees Celcius, thereby losing approximately 3140 J of heat.

Reference no: EM13225935

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