First slide

Gibb's Helmholtz equation

Question

Statement I: Many endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperature.
Statement II : Entropy of the system increases with increase in temperature.

Moderate

A

Statement I and Statement II are true.
B

Statement I is true and statement II is false.
C

Statement I is false and Statement II is true.
D

Statement I and Statement II are false.

Solution

(I) Energy factor Opposing Endothermic reactions
With increase in temperature disorder increases and
$T\Delta S>\Delta H\;;\Delta G<0$
Hence the process is Spontaneous
(II) With increase in Temperature , Kinetic energy Increases , disorder increases

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