Test: Law of Mass Action, Equilibrium Constants (Kc and Kp) - JEE MCQ
15 Questions MCQ Test Chemistry for JEE Main & Advanced - Test: Law of Mass Action, Equilibrium Constants (Kc and Kp)
At T( K), the equilibrium constant of H2(g) + I2(g) ⇌ 2HI(g) is 49. If [H2],[I2] at equilibrium at the same temperature are 2.0 × 10−2M and 8.0 × 10−2M respectively, the [HI] at equilibrium in molL−1 is
For a reversible reaction, if the concentration of the reactants is reduced to half, the equilibrium constant will be.........
is independent of initial concentrations of reactants and products. So, options (a), (b) and (c) are not correct, i.e. so, for a reversible reaction, if the concentration of the reactants is reduced to half, the equilibrium constant will be remains same.| 1 Crore+ students have signed up on EduRev. Have you? Download the App |
Which among the following denotes the correct relationship between 
and 
for the reaction 
and for the reaction 
is the difference of the gaseous number of moles of reactant side and product side
Kc for the reaction N2(g) + O2(g) ⇌ 2NO(g) at 300 K is 4.0 × 10−6. Kp for the above reaction will be (R = 2calmol−1 K−1)
The equilibrium constant of the following are :
The equilibrium constant 
of the reaction :
, will be
The degree of dissociation of PCl5(α) obeying the equilibrium PCl5 ⇌ PCl3 + Cl2 is related to the equilibrium pressure by
moles of 
and 
moles of 
are mixed and allowed to attain equilibrium at 
. At equilibrium, the number of moles of 
is found to be 
mole. The equilibrium constant for the formation of 
is
For the reaction H2(g) + I2( g) ⇌ 2HI(g) at 721 K, the value of equilibrium constant is 50, when equilibrium concentration of both is 5M. Value of Kp under the same conditions will be
For a reversible gaseous reaction 
at equilibrium, if some moles of 
are replaced by same number of moles of 
(T is tritium, isotope of 
and assume isotopes do not have different chemical properties) without affecting other parameter, then:
has similar chemical properties as 
so upon mixing, 
and 
are formed.The ratio 
for the reaction 
is:
Which of the following is true at chemical equilibrium?
Consider the expression 
and indicate the correct statement at equilibrium
If the synthesis of ammonia from Haber's process is carried out with exactly the same starting conditions (of partial pressure and temperature) but using 
(deuterium) in place of 
. Then
or 
reach equilibrium with the same composition, except that 
and 
are present instead of 
and 
.In which of the following reactions, the concentration of product is higher than the concentration of reactant at equilibrium? (K = equilibrium constant)
, then [Product] > [Reactant]The increase of pressure on ice 
water system at constant temperature will lead to
So equilibrium, will shift forward.|
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Important Questions for Law of Mass Action, Equilibrium Constants (Kc and Kp)
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