Which of the following conditions would always result in a decrease in the inter
ID: 851155 • Letter: W
Question
Which of the following conditions would always result in a decrease in the internal energy of a system?
The system gains heat and does work on the surroundings.
The system loses heat and does work on the surroundings.
The system gains heat and has work done on it by the surroundings.
The system is heated.
The system loses heat and has work done on it by the surroundings.
a.The system gains heat and does work on the surroundings.
b.The system loses heat and does work on the surroundings.
c.The system gains heat and has work done on it by the surroundings.
d.The system is heated.
e.The system loses heat and has work done on it by the surroundings.
Explanation / Answer
An exothermic reaction (the release of heat) leaves a Negative amount of energy.
When a gas does work on the surronding, a negative amount of energy occurs.
- + - always negative... correct answer B
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