NEET-XII-Chemistry
exam-1 year:2016
- #64The correct thermodynamic conditions for the
spontaneous reaction at all temperatures is
(1)``\triangle``H < 0 and ``\triangle``S = 0
(2) ``\triangle``H > 0 and ``\triangle``S < 0
(3) ``\triangle``H < 0 and ``\triangle``S > 0
(4)``\triangle``H < 0 and ``\triangle``S < 0digAnsr: 3Ans : (3)
Sol. â–µG = â–µH - T.â–µS
For, â–µH < 0 and â–µS > 0, â–µG = -ve (always)
∴ spontaneous at all temperatures.