1
JEE Main 2021 (Online) 24th February Morning Slot
Numerical
+4
-1
The stepwise formation of $${\left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]^{2 + }}$$ is given below:

The value of stability constants K1, K2, K3 and K4 are 104, 1.58 x 103, 5 x 102 and 102 respectively.
The overall equilibrium constants for dissociation of $${\left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]^{2 + }}$$ is x $$\times$$ 10-12.
The value of x is ________. (Rounded off to the nearest integer)
2
JEE Main 2021 (Online) 24th February Morning Slot
Numerical
+4
-1
At 1990 K and 1 atm pressure, there are equal number of Cl2, molecules and Cl atoms in the reaction mixture. The value of Kp for the reaction Cl2 (g) $$\rightleftharpoons$$ 2Cl(g) under the above conditions is x $$\times$$ 10-1.
The value of x is _______. (Rounded off to the nearest integer)
3
JEE Main 2021 (Online) 24th February Morning Slot
Numerical
+4
-1
For the reaction A(g) $$\to$$ B(g) the value of the equilibrium constant at 300 K and 1 atm is equal to 100.0. The value of $$\Delta$$rG for the reaction at 300 K and 1 atm in J mol-1 is – xR, where x is _______. (Rounded off to the nearest integer)
[R = 8.31 J mol–1K-1 and ln 10 = 2.3)
4
JEE Main 2020 (Online) 5th September Evening Slot
Numerical
+4
-0
For a reaction X + Y ⇌ 2Z , 1.0 mol of X, 1.5 mol
of Y and 0.5 mol of Z were taken in a 1 L vessel and
allowed to react. At equilibrium, the concentration
of Z was 1.0 mol L–1. The equilibrium constant of reaction
is $${x \over {15}}$$. The value of x is _________.
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