a gas is cooled and losed GSJ heat. The of que contracts as it coole and work done on gas the system equal to 22J is exchanged with the surrounding. What is the value of U
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Explanation:
Heat released has negative sigh. Thus, q=−65J
The work done on the system has a positive sign. w=+20J
The expression for the change in the internal energy is
ΔE=q+w=−65J+20J=−45J
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