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Question
An ideal gas is taken through an isothermal process. If it does 2000 J of work on its environment, how much heat is added to it?
Solution
Given: W = 2000 J, isothermal process
As the gas is taken through an isothermal process, the internal energy of the gas, Δ U changes nothing and remains constant.
Therefore, the heat added to it,
Q = Δ U + W
Q = 0 + W
Q = 2000 J
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