Chemistry Question Bank

Which of the following is correct for equilibrium state?

Equilibria involving O2 molecules and the protein heamoglobin play a crucial role

Chemical equilibria are important in numerous … (X) … and …. (Y) … processes. Here, (X) and (Y) refer to

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 fitted in the contain…

The equilibrium constants of the following are N 3H 2NH ;K N O 2NO;K H O H O;K The equilibrium constant (K) of the reaction : K 2NH O 2NO 3H O will be (NEET 2017) (a) K K K (b) K K K (c) K K K (d) K K K

Which of the following statements is correct for a reversible process in a state of equilibrium? (NEET 2015) (a) o G 2.30RT log K (b) o G 2.30 RT log K

If the value of equilibrium constant for a particular reaction is 1.6 10 x , then at equilibrium the system will contain (NEET 2015)

If the equilibrium constant for 2 g 2 g g N O 2NO is K, the equilibrium constant for 2 g 2 g g N O NO will be (NEET 2015)

Which of the following statement is correct for a reversible process in a state of equilibrium ? (AIPMT 2015) (a) G = 2.30 RT log K (b) o G = –2.30 RT log K (c) o G = 2.30 RT log K (d) G = – 2.30 RT log K

If the value of an equilibrium constant for a particular reaction is 1.6 × 1012, then at equilibrium the system will contain (AIPMT 2015) (a)mostly reactants

For the reversible reaction (AIPMT 2014) N (g) 3H (g) 2NH (g) Heat The equilibrium shifts in forward direction

For the reaction, C(s) + CO2(g) 2CO(g), p K 63atm at 1000 K. If at equilibrium CO CO p 10p , than the total pressure of the gases at equilibrium is (KERELA CEE 2011)

In the reaction, AB (g) A(g) + B(g) at 30ºC, Kp for the dissociation equilibrium is 2.56 × 10–2 atm. If the total pressure at equilibrium is 1 atm, then the percentage dissociation of AB is (KERELA CEE 2011)

The value of H for the reaction, (AIPMT 2011) X g 4Y g 2XY g is less than zero. Formation of XY4(g) will be favoured at

Consider the following gaseous equilibria with equilibrium constants K1 and K2 respectively. SO g O g SO g (KCET 2011) 2SO g 2SO g O g The equilibrium constants are related as (a) 2K K (b) K K (c) K K (d)…

For the reaction, N (g) O (g) 2NO(g) , the equilibrium constant is K1. The equilibrium constant is K2 for the reaction, 2NO(g) O (g) 2NO (g) . What is K for the reaction NO (g) N (g) O (g) (AIPMT 2011) (a) (K…

What is c K for the following equilibrium when equilibrium concentration of each substance is [SO ] 0.60 M, [O ] 0.82 M and [SO ] 1.90 M ? (VMMC 2010) 2SO (g) O (g) 2SO (g)

In which one of the following gaseous equilibria, p K is less than c K ? (CMC LUDHIYANA 2010) (a) N O 2NO (b) 2SO O 2SO (c) 2HI H I (d) N O 2NO

The relation between p c K and K for the following reaction is (JCECE 2010) N (g) 3H (g) 2NH (g) -> (a) p c K K (RT) (b) c p K K (RT) (c) c p K K (RT) (d) p c K K (RT)

At 450 K, p K 2.0 / bar x for the given reaction at equilibrium 2SO (g) O (g) 2SO (g) (HARYANA PMT 2010) What is c K at this temperature ? (a) 73.8 x (b) 7.38 10 x

In which of the following equilibrium Kc and Kp are not equal? (AIPMT 2010) (a) 2C s O g 2CO g (b) 2NO g N g O g p K (c) SO g NO g SO g NO g (d) H g I g 2HI g

For the reaction, AB g A g B g AB is 33% dissociated at a total pressure of p. Therefore, p is related to by one of the following options (AMU 2010)

For an equilibrium reaction, the rate constants for the forward and the backward reaction are 2.38 × 10–4 and 8.15 × 10–5 respectively. What will be the equilibrium constant for the reaction ? (RPMT 2010)

For the equilibrium, 2NO (g) N O (g) 14.6 kcal, (CPMT 2009) Increase in temperature

Which reaction is not affected by change in pressure? (AFMC 2009) (a) (g) (g) (g) H I 2HI (b) (s) (g) (g) 2C O 2CO (c) (s) (g) (g) N 3H 2NH (d) (g) (g) (g) PCl PCl Cl