A reaction occurs spontaneously if: (A)TΔS=ΔH and both ΔH and ΔS are positive (B) TΔS>ΔH and both ΔH and ΔS are positive (C) TΔS>ΔH and both ΔH and ΔS are positive (D)TΔS>ΔH and both ΔH and ΔH is positive and ΔS is negative.

If a reaction is spontaneous, then,

ΔG=−ve

Since, ΔG=ΔH−TΔS

ΔH=+ve,

ΔS=+ve

and TΔS>ΔH

Therefore, ΔG < 0

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