A piston filled with 0.04mol of an ideal gas under goes reversible expansion from 50ml to 375ml at constant temperature of 37°C. As it does so, it absorbs 208J of heat. The value of q and w for the process will be?
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a
q=−208J; w=−208J
b
q=−208J; w=+208J
c
q=+208J; w=+208J
d
q=+208J; w=−208J
answer is D.
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Detailed Solution
Process is isothermal reversible expansion, hence ΔU=0∴Q=-WQ=+208JQ=-208J