Which of the following options represents correct sequence of True (T) or False (F) statements :
Statement-I: No Gibbs free energy change occurs for vapourisation at triple point. Statement-II: Entropy driven processes are spontaneous at high temperature.
Statement-III: $Δ G^{\circ}$ of a reaction will increase with increase in temperature if the reaction is
endothermic.

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

TTT

FTF

TFF

'TTF

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

ST-1 : At triple point all three states are in equilibrium with each other, hence

$Δ G_{vap} = 0$ .

$ST - 2 : Δ G = Δ H - T Δ S$

as T increases, $Δ G$ become more and more negative.

$ST - 3 : Δ G^{\circ} = - R T \ln K$

For endothermic reaction as T increases, K increases

$∴ Δ G^{\circ}$ will decreases as T increases.

Watch 3-min video & get full concept clarity