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Substance A is a nonpolar liquid and has only dispersion forces amongits constituent particles. Substance B is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles as substance A. When substance A and substance B are combined, they spontaneously mix. a. Why do the two substances mix? b. Predict the sign and magnitude of ΔHsoln.c. Determine the signs and relative magnitudes of ΔHsolute, ΔHsolvent, and ΔHmix

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Answer:

(a) when both the liquid are mixed, they become completely miscible as the intermolecular forces between them are equal to the intra molecular forces

(b) since the magnitude of intermolecular force = intra molecular forces, Delta H solution=0

(c) Delta H solute = positive

Delta H solvent = positive

Delta H mix = negative

Explanation:

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