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Jasmin Murthy
Asked: 2022-11-06T23:18:22+05:30 In:

If an eddothermic reaction occurs spontaneously at constant temperature and pressure, then which of the following is true?
A. `Delta S lt 0`
B. `Delta S gt 0`
C. `Delta H lt 0`
D. `Delta G gt 0`

If an eddothermic reaction occurs spontaneously at constant temperature and pressure, then which of the following is true?
A. `Delta S lt 0`
B. `Delta S gt 0`
C. `Delta H lt 0`
D. `Delta G gt 0`
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1 Answer

  1. Correct Answer – B
    According to thermodynamics (at constant `T` and `P`)
    `Delta G = Delta H – T Delta S`
    For reaction to be spontaneous, `Delta G` should be negative `(lt 0)`. Since the reaction is endothermic, `Delta H` is positive `(gt 0)`. Thus, `T Delta S` should be positive and greater than `Delta S` must be positive `(gt o)`,

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