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A gas is compressed at a constant pressure of0.320atm from a volume of 8.00L to 4.00 L. In the process, 400 J of heat energy flows out of the gas.
(a) What is the work done by the gas?(b) What is the change in its internal energy?
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A 1.526 g sample of a polymer dissolved in 1.00 L of a benzene solution at 22°C has an osmotic pressure of 4.52 x 10-2 atm. What is the molar mass of thepolymer?
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