Question

At 27oc, one mole of pure liquid a is mixed with one mole of pure liquid b to form an ideal solution. What is deltasmix (in j/k) of the solution?

Answer 1

Answer:

Theoretically speaking, entropy should increase while mixing two ideal mixtures (from Second law of Thermodynamics). But when mixing happens at constant pressure, (deltaH) =(delta Q) and thus (delta S) = (delta H)/T and for ideal mixing (delta H)=0.

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