Spontaneity of a process is decided by the value of ∆G. A negative value of ∆G. shows a spontaneous process.

Question

Spontaneity of a process is decided by the value of \(\triangle G.\) A negative value of \(\triangle G.\)shows a spontaneous process. Since, the value of \(\triangle G\) depends upon \(\triangle S\) and \(\triangle H,\) these two also play an important role for deciding spontaneity of a process. The condition for spontaneity of any chemical reaction, if

(a) \(T\triangle S\) = \(\triangle H\) and \(\triangle S\) are positive

(b) \(T\triangle S\) > \(\triangle H\) and both \(\triangle H\) and \(\triangle S\) are positive

(c) \(T\triangle S\) < \(\triangle H\) and both \(\triangle H\) and \(\triangle S\) are positive

(d) \(T\triangle S\) > \(\triangle H\) and \(\triangle H\) positive and \(\triangle S\) is negative

Answer 1

Answer is (b) \(T\triangle S\) > \(\triangle H\) and both \(\triangle H\) and \(\triangle S\) are positive