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Question
A piston filled with 0.04 mol of an ideal gas expands reversibly from 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=8.314J/molK)(ln7.5=2.01)
A piston filled with 0.04 mol of an ideal gas expands reversibly from 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=8.314J/molK)(ln7.5=2.01)
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Solution
The correct option is A q=+208J, w=−208J
From the thermodynamics equation, we have
ΔU=q+w.
Since the reaction is isothermal ΔU=0, so q=−w.
q=+208 J
w=−208 J
Option D is correct.
From the thermodynamics equation, we have
ΔU=q+w.
Since the reaction is isothermal ΔU=0, so q=−w.
q=+208 J
w=−208 J
Option D is correct.
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