H2P-260
First law of thermodynamics
H2 Physics · JC 1 · Medium · First law of thermodynamics
A gas in a cylinder is heated so that it absorbs 500 J of heat. At the same time it expands against a constant external pressure and does 200 J of work on the surroundings. For the gas, what is the change in internal energy?
- +300 J
- +700 J
- +200 J
- −300 J
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