1

JEE Main 2022 (Online) 24th June Evening Shift

Numerical

+4

-1

PCl_{5} dissociates as

PCl_{5}(g) $$\rightleftharpoons$$ PCl_{3}(g) + Cl_{2}(g)

5 moles of PCl_{5} are placed in a 200 litre vessel which contains 2 moles of N_{2} and is maintained at 600 K. The equilibrium pressure is 2.46 atm. The equilibrium constant K_{p} for the dissociation of PCl_{5} is __________ $$\times$$ 10^{$$-$$3}. (nearest integer)

(Given : R = 0.082 L atm K^{$$-$$1} mol^{$$-$$1}; Assume ideal gas behaviour)

Your input ____

2

JEE Main 2022 (Online) 24th June Morning Shift

Numerical

+4

-1

2O_{3}(g) $$\rightleftharpoons$$ 3O_{2}(g)

At 300 K, ozone is fifty percent dissociated. The standard free energy change at this temperature and 1 atm pressure is ($$-$$) ____________ J mol^{$$-$$1}. (Nearest integer)

[Given : ln 1.35 = 0.3 and R = 8.3 J K^{$$-$$1} mol^{$$-$$1}]

Your input ____

3

JEE Main 2021 (Online) 27th August Evening Shift

Numerical

+4

-1

When 5.1 g of solid NH

_{4}HS is introduced into a two litre evacuated flask at 27$$^\circ$$C, 20% of the solid decomposes into gaseous ammonia and hydrogen sulphide. The K_{p}for the reaction at 27$$^\circ$$C is x $$\times$$ 10^{$$-$$2}. The value of x is _____________. (Integer answer) [Given R = 0.082 L atm K^{$$-$$1}mol^{$$-$$}]Your input ____

4

JEE Main 2021 (Online) 27th August Morning Shift

Numerical

+4

-1

The number of moles of NH

[Assume no volume change on adding NH

_{3}, that must be added to 2L of 0.80 M AgNO_{3}in order to reduce the concentration of Ag^{+}ions to 5.0 $$\times$$ 10^{$$-$$8}M (K_{formation}for [Ag(NH_{3})_{2}]^{+}= 1.0 $$\times$$ 10^{8}) is ____________. (Nearest integer)[Assume no volume change on adding NH

_{3}]Your input ____

Questions Asked from Chemical Equilibrium (Numerical)

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