If the enthalpy of mixing for a regular solution is positive, will you get a solid...

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If the enthalpy of mixing for a regular solution is positive, will you get a solid solution for sure? If not, please explain

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Answer 1

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when the enthalpy of mixing is positive, mixing is endothermic while negative enthalpy of mixing signifies exothermic mixing. In ideal mixtures the enthalpy of mixing is null.

The excess enthalpy relative to the mechanical mixture is known as the enthalpy of mixing, ΔHmix. This can either be positive or negative, or zero. If ΔHmix = 0, the solution is said to be ideal, and for ΔHmix ≠ 0, the solid solution is said to be non-ideal.

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