ThermodynamicsHard

Question

Ammonium chloride when dissolved in water leads to cooling sensation. The dissolution of NH4Cl at constant temperature is accompanied by

Options

A.increase in entropy.

B.decrease in entropy.

C.no change in entropy

D.no change in enthalpy.

Solution

As ΔH = +ve but the process is spontaneous, it is possible only when ΔS is also +ve.

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