NEET Chemistry - New - Equilibrium

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Question - 1

Which one of the following conditions will favour maximum formation of the product in the reaction, A2(g) + B2(g) ⇌ X2(g), △rH = - X kJ?

  • A Low temperature and high pressure
  • B Low temperature and low pressure
  • C High temperature and high pressure
  • D High temperature and low pressure

Question - 2

A 20 litre container at 400 K contains CO2(g) at pressure 0.4 atm 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 container. The maximum volume of the container, when pressure of CO2 attains its maximum value,
Given that: SrC03(S) ⇌SrO(s) + CO2(g), (KP= 1.6 atm)

  • A 5 L
  • B 10 L
  • C 10 L
  • D 2 L

Question - 3

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

  • A △Go= -2.30 RT log K
  • B △G = 2.30 RT log K
  • C △Go = 2.30 RT log K
  • D △G = - 2.30 RT log K

Question - 4

If the equilibrium constant for N2(g)+ O2(g) ⇌ 2NO(g) is K, the equilibrium constant for \(\frac { 1 }{ 2 } \)N2(g) + \(\frac { 1 }{ 2 } \)O2(g)  ⇌ NO(g) will be :

  • A \(\frac { 1 }{ 2 } \)K
  • B K
  • C \({ K }^{ 2 }\)
  • D \({ K }^{ \frac { 1 }{ 2 } }\)

Question - 5

For the reversible reaction:
N2(g)+ 3H2(g)⇌ 2NH3(g)+ heat
The equilibrium shifts in forward direction:

  • A By increasing the concentration of NH3(g)
  • B By decreasing the pressure
  • C By decreasing the concentration of N2(g) and H2(g)
  • D By increasing pressure and decreasing temperature.

Question - 6

The value of H for the reaction X2(g)+ 4Y2(g)2XY4(g) is less than zero. Formation of will be favoured at :

  • A Low pressure and low temperature
  • B High temperature and low pressure
  • C High pressure and low temperature
  • D High temperature and high pressure

Question - 7

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)⇌\(\frac { 1 }{ 2 } \)N2(g) + O2(g)?

  • A 1/(4 K1K2)
  • B \({ \left[ { 1 }/{ { K }_{ 1 }{ K }_{ 2 } } \right] }^{ \frac { 1 }{ 2 } }\)
  • C 1/(K1K2)
  • D 1/(2K1K2)

Question - 8

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

  • A 2NO(g) ⇌ N2(g)+ O2(g)
  • B SO2(g)+ NO2(g)⇌S03(g) + NO(g)
  • C H2(g)+ I2(g)⇌ 2HI(g)
  • D 2C(s)+ O2(g)⇌2CO2(g)

Question - 9

If the concentration of OH- ions in the reaction, Fe(OH)3(s) ⇌ Fe3+(aq) + 30H-(aq) is decreased by \(\frac { 1 }{ 4 } \) times, then equilibrium concentration of Fe3+ will increase by :

  • A 8 times
  • B 16 times
  • C 64 times
  • D 4 times

Question - 10

The value of equilibrium constant of the reaction, HI(g) ⇌\(\frac { 1 }{ 2 } \)H2(g)+ \(\frac { 1 }{ 2 } \)I2(g) is 8.0. The equilibrium constant of the reaction, H2(g)+ I2(g) ⇌2HI(g)

  • A 1/6
  • B 1/64
  • C 16
  • D 1/8
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