An ideal gas gave off an amount of heat to 300 J and at the same time the internal energy decreased
| July 9, 2021 | education
An ideal gas gave off an amount of heat to 300 J and at the same time the internal energy decreased by 100 J Work done on the gas?
Data: Q (heat given off by gas) = -300 J; ΔU (change (decrease) in internal energy) = -100 J.
To find the value of the work done on the gas, we use the formula: ΔU = Q + A, whence we express: A = ΔU – Q = -100 – (-300) = 200 J.
Answer: Work on gas is 200 J.
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