The first law of thermodynamics states that energy could neither be created nor destroyed, which can...

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The first law of thermodynamics states that energy could neither be created nor destroyed, which can be described using the following equation: AU = Q -W Where: AU: change in internal energy of the system, J 0: heat added to the system, J W: work done by the system, J a. When 5000 J of heat is added to a system meanwhile 2000 J of work is done by the system, what is the change of internal energy of the system? b. When 3000 J of heat is extracted from a system meanwhile 3500 J of work is done on the system, what is the change of internal energy of the system? [1 pt] c. A certain volume of air is kept in an insulated cylinder with a vertically movable piston (i.e., the piston system). The volume of air is compressed when the piston moves downwards. If the compression consumes 300 J of external work, what is the change of the internal energy of this piston system? [1 pt] The first law of thermodynamics states that energy could neither be created nor destroyed, which can be described using the following equation: AU = Q -W Where: AU: change in internal energy of the system, J 0: heat added to the system, J W: work done by the system, J a. When 5000 J of heat is added to a system meanwhile 2000 J of work is done by the system, what is the change of internal energy of the system? b. When 3000 J of heat is extracted from a system meanwhile 3500 J of work is done on the system, what is the change of internal energy of the system? [1 pt] c. A certain volume of air is kept in an insulated cylinder with a vertically movable piston (i.e., the piston system). The volume of air is compressed when the piston moves downwards. If the compression consumes 300 J of external work, what is the change of the internal energy of this piston system? [1 pt]

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a Q 5000 J W 2000 J U Q W 5000 2000 ... View the full answer