InterviewSolution
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InterviewSolution
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For a non-ideal solution with a-ve deviationA. `Delta H_(mix)=-ve`B. `Delta V_(mix)=-ve`C. `Delta S_(mix)=-ve`D. `Delta G_(mix)=-ve` |
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Answer» Correct Answer - A::B::D Explanation : (a) For -ve deviation `Delta H_(mix)` = -ve due to greater forces of attraction after mixing. Statement (a) is correct. `Delta V_(mix)` = -ve because volume of resulting solution decreases as particles come close together. Statement (b) is correct `Delta G_(mix)=-ve` because `Delta G=Delta H-T Delta S=(-)Delta H-T(+Delta S)=-ve` Hence, choice (d) is correct. `Delta S_(mix) =+ve`, Entropy always increases on mixing. Statement (c )is incorrect. |
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