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Question
A piston filled with 0.04 mol of an ideal gas expands reversibly form 50.0 mL to 375 mL at a constant temperature of 37.0oC. As it does so, it absorbs 208 J of heat. The values of q and w for the process will be:
(R = 8.314 J/mol K) (ln 7.5 = 2.01)
A piston filled with 0.04 mol of an ideal gas expands reversibly form 50.0 mL to 375 mL at a constant temperature of 37.0oC. As it does so, it absorbs 208 J of heat. The values of q and w for the process will be:
(R = 8.314 J/mol K) (ln 7.5 = 2.01)
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Solution
The correct option is D q = +208 J, w = -208 J
Process is isothermal reversible expansion, hence △U=0.
∴ q = -w As q = +208 J Hence, w = -208 J
Process is isothermal reversible expansion, hence △U=0.
∴ q = -w As q = +208 J Hence, w = -208 J
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