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Problem 133 Medium Difficulty

Which statement is true of the internal energy of the system and its surroundings following a process in which Esys = +65 kJ? Explain.
a. The system and the surroundings both lose 65 kJ of energy.
b. The system and the surroundings both gain 65 kJ of energy.
c. The system loses 65 kJ of energy, and the surroundings gain 65 kJ of energy.
d. The system gains 65 kJ of energy, and the surroundings lose 65 kJ of energy.

Answer

d

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Video Transcript

In this question, we are told that doth of castac is equal to plus 65 kilo joules. So whenever you have it make a positive sign, it means energy is flowing into that direction and, in this case, a system that means that 65 kilos of energy is floating into the system, and this energy has to flow from some energy cannot be created or can Be destroyed according to the first term, dileto conservation of method, so this energy spring from a particular direction and the only direction we have is the sorrento. That means that the system is given g 65 kilo joules and then the solent is losing 65 kilo, joe. So the correct option is d and size d. The system is gaining 65 kilo, joules andy 5 kilo,

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