H2P-262
First law of thermodynamics
H2 Physics · JC 1 · Medium · First law of thermodynamics
An ideal gas in a cylinder is kept at constant pressure. Its temperature decreases and the gas contracts, so the surroundings do 400 J of work on the gas. During this process, 1000 J of heat leaves the gas. What is the change in internal energy of the gas?
- +600 J
- −600 J
- −1400 J
- +1400 J
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