Chemical Equilibrium Questions

483 Chemistry questions for JEE Main & NEET. Includes 12 PYQ questions.

483 Questions12 PYQ50 Hard
PYQ 2014Hard90s

For the reaction SO2(g) + O2(g) ⇋ SO3(g), if KP = KC(RT)x where the symbols have usual meaning then the value of x is (assuming ideality)...

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PYQ 2014Hard90s

For the reversible reaction, N2(g) + 3H2(g) ⇋ 2NH3(g) + Heat The equilibrium shifts in forward direction

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PYQ 2014Hard90s

For a given exothermic reaction, Kp and K′p are the equilibrium constants at temperatures T1 and T2, respectively. Assuming that heat of reaction is constant in temperature range between T1 and ...

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PYQ 2015Hard90s

If the value of an equilibrium constant for a particular reaction is 1.6 × 1012, then at equilibrium the system will contain :-

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PYQ 2015Hard90s

Which of the following statements is correct for a reversible process in a state of equilibrium ?

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PYQ 2017Hard90s

The equilibrium constant of the following are : N2 + 3H2 ⇌ 2NH3            K1 N2 + O2 ⇌ 2NO              K2 H2 + 12O2→H2O         K3 The equilibrium constant (...

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PYQ 2017Hard90s

Which one of the following statements is not correct?

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PYQ 2017Hard90s

A 20 litre container at 400 K contains CO2(g) at pressure 0.4 atm and an excess of SrO (neglect the volume of solid SrO). The volume of the container is now decreased by moving the movable piston fitt...

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PYQ 2016Hard90s

Consider the following liquid - vapour equilibrium. Liquid ⇌ Vapour Which of the following relations is correct?...

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PYQ 2018Hard90s

An aqueous solution contains 0.10 M H2S and 0.20 M HCl. If the equilibrium constants for the formation of HS- from H2S is 1.0 × 10-7 and that of S2- from HS- ions is 1.2 × 10-13 then the con...

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PYQ 2018Hard90s

Which of the following lines correctly show the temperature dependence of equilibrium constant, K, for an exothermic reaction ?...

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PYQ 2013Hard90s

The thermal dissociation equilibrium of CaCO3(s) is studied under different conditions.CaCO3(s) ⇋ CaO(s) + CO2(g)For this equilibrium, the correct statement(s) is(are)...

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Hard90s

KMnO4 can be prepared from K2MnO4 as per the reaction :- 3MnO42- + 2H2O ⇋ 2MnO4- + MnO4 + 4OH-The reaction can go to complition by removing OH- ions by addition of :-...

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Hard90s

The equilibrium constant (KC) for the reaction N2(g) + O2(g) → 2NO(g) at temperature T is 4 × 10-4. The value of KC for the reaction. NO(g)→ 1/2 N2 (g) + 1/2 O2(g) at the sametemperature ...

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Hard90s

Given that the equilibrium constant for the reaction 2SO2(g) + O2(g) ⇋ 2SO3(g) has a value of 278 at a particular temperature. What is the value of the equilibrium constant for the following rea...

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Hard90s

Given the reaction between 2 gases represented by A2 and B2 to give the compound AB(g). A2(g) + B2(g) = 2AB(g) At equilibrium, the concentration of A2 = 3.0 × 10-3 M of B2 = 4.2 × 10-3 M of ...

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Hard90s

The value of ᐃH for the reactionX2(g) + 4Y2(g) ⇋ 2XY4(g) is less than zero. Formation of XY4(g) will be favoured at...

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Hard90s

For the reaction N2(g) + O2(g) ⇋ 2NO (g), the equilibrium constant is K1. The equilibrium constant is K2 for the reaction 2NO (g) + O2(g) ⇋ 2NO2(g), What is K for the reaction NO2(g) &#865...

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Hard90s

A vessel at 1000 K contains CO2 with a pressure of 0.5 atm. Some of the CO2 is converted into CO on the addition of graphite. If the total pressure at equilibrium is 0.8 atm, the value of K is...

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Hard90s

In which of the following equilibrium Kc and Kp are not equal ?

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