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solve the problems below. show all necessary solutions.

350J of heat is added to a system with initial internal energy 400J. what is the change in internal energy of the system?​


Sagot :

Answer:

The internal energy of the system will decrease when the system does work and/or gives off heat. Since the heat given out is 150 J and the reduction in internal energy is 400 J, the work done by the engine is 400– 150 = 250 J.

When the internal energy is reduced, the system is cooled. Therefore, temperature will decrease.

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