InterviewSolution
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InterviewSolution
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For the gas phase reaction `PCl_(5)rarrPCl_(3)(g)+Cl_(2)(g)` which of the following conditions are correct?A. `Delta H = lt` and `Delta S lt 0`B. `Delta H gt 0` and `Delta S gt 0`C. `Delta H lt 0` and `Delta S lt 0`D. `Delta H gt 0` and `Delta S lt 0` |
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Answer» Correct Answer - B The reaction involves the dissociation of `PCl_(5)`, an energy consuming. Thus, `Delta H` is positive `(gt 0)`. During the course of reaction, there is an increase in the number of gaseous species and, hence `Delta S` is also positive `(gt 0)`. |
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