Ncert Exercises & Solutions

Match the Column I with Column II

Column I	Column II
A. Equilibrium	1. $∆ G > 0, K < 1$
B. Spontaneous reaction	2. $∆ G = 0$
C. Non-spontaneous reaction	3. $∆ G < 0, K > 1$

Codes

Options:	A	B	C
1.	2	3	1
2.	1	2	3
3.	2	1	3
4.	3	1	2

Hint: The relation between ∆_rG^o and K is ∆_rG^o= – RT ln K

∆ G

is 0, the reaction has achieved equilibrium: at this point, there is no longer any free energy left to drive the reaction.

B. If

∆ G < 0

, then K>1 which implies a spontaneous reaction or the reaction which proceeds in the forward direction to such an extent that the products are present predominantly.

C. If

∆ G > 0

, then K<1, which implies a non-spontaneous reaction or a reaction that proceeds in the forward direction to such a small degree that only a very minute quantity of product is formed.

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