Solve the following and provide the complete solution: Three moles of N2(g), originally at 1 atm pressure, are mixed isothermally with 5 moles of H2(g), also at 1 atm pressure, to yield a mixture whose total pressure is 1 atm. Assuming the gases to be ideal, calculate (a) the total entropy of mixing, and (b) the entropy of mixing per mole of gas.

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