JEE Main 2013 Chemistry 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 37.0°C. 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) (ln7.5 = 2.01)
Answer: (3)
Solution
Isothermal ideal gas: ΔU = 0. The gas absorbs heat, q = +208 J, and does an equal amount of expansion work, so
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