1
JEE Main 2021 (Online) 27th July Evening Shift
Numerical
+4
-1
Change Language
The equilibrium constant for the reaction

A(s) $$\rightleftharpoons$$ M(s) + $${1 \over 2}$$O2(g)

is Kp = 4. At equilibrium, the partial pressure of O2 is _________ atm. (Round off to the nearest integer)
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2
JEE Main 2021 (Online) 27th July Morning Shift
Numerical
+4
-1
Change Language
PCl5 $$\rightleftharpoons$$ PCl3 + Cl2

Kc = 1.844

3.0 moles of PCl5 is introduced in a 1 L closed reaction vessel at 380 K. The number of moles of PCl5 at equilibrium is ______________ $$\times$$ 10$$-$$3. (Round off to the Nearest Integer)
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3
JEE Main 2021 (Online) 25th July Evening Shift
Numerical
+4
-1
Change Language
Assuming that Ba(OH)2 is completely ionised in aqueous solution under the given conditions the concentration of H3O+ ions in 0.005 M aqueous solution of Ba(OH)2 at 298 K is ______________ $$\times$$ 10$$-$$12 mol L$$-$$1. (Nearest integer)
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4
JEE Main 2021 (Online) 25th July Morning Shift
Numerical
+4
-1
Change Language
For the reaction

A + B $$\rightleftharpoons$$ 2C

the value of equilibrium constant is 100 at 298 K. If the initial concentration of all the three species is 1 M each, then the equilibrium concentration of C is x $$\times$$ 10$$-$$1 M. The value of x is ____________. (Nearest integer)
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