Question

Which of the following is true of the internal energy of the system and its surroundings following a process in which ΔEsys=+65kJ. Which of the following is true of the internal energy of the system and its surroundings following a process in which . The system and the surroundings both lose 65kJ of energy. The system and the surroundings both gain 65kJ of energy. The system gains 65kJ of energy and the surroundings lose 65kJ of energy. The system loses 65kJ of energy and the surroundings gain 65kJ of energy.

Answer 1

The system gains 65kJ of energy and the surroundings lose 65kJ of energy.

Step-by-step explanation:

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Answer 2

The system gains 65kJ of energy and the surroundings lose 65kJ of energy.

Step-by-step explanation:

By convention of signs, ΔEsys=+65kJ means that the system gains 65 kJ of heat. According to the Law of conservation of energy, energy cannot be created nor destroyed, only transferred and transformed. So, if the system gains energy, the surroundings must lose the same amount, that is, ΔEsur=-65kJ and ΔEsys + ΔEsur = 0.