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Spontaneity of a process is decided by the value of ΔG . A negative value of ΔG shows a spontaneous process. Since, the value of ΔG depends upon ΔG and ΔH, these two also play an important role for deciding spontaneity of a process. The condition for spontaneity of any chemical reaction, 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 ΔH is positive and ΔS is negative
Spontaneity of a process is decided by the value of ΔG . A negative value of ΔG shows a spontaneous process. Since, the value of ΔG depends upon ΔG and ΔH, these two also play an important role for deciding spontaneity of a process. The condition for spontaneity of any chemical reaction, 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 ΔH is positive and ΔS is negative
Correct Option (b) TΔS > ΔH and both ΔH and ΔS are positive
Explanation :
If ΔS = positive, ΔH = positive Then, ΔG will be negative if and only if TΔS > ΔH