- In the equilibrium CO(g)+H2O(g)⇌CO2(g)+H2(g)CO(g) + H_2O(g) \rightleftharpoons CO_2(g) + H_2(g)CO(g)+H2O(g)⇌CO2(g)+H2(g), if the pressure is increased, the equilibrium will:
a) Shift to the right
b) Shift to the left
c) Remain unchanged
d) Increase the concentration of CO2CO_2CO2
Answer: c - For the reaction 2NO(g)+Cl2(g)⇌2NOCl(g)2NO(g) + Cl_2(g) \rightleftharpoons 2NOCl(g)2NO(g)+Cl2(g)⇌2NOCl(g), increasing the temperature will:
a) Shift the equilibrium to the right
b) Shift the equilibrium to the left
c) Decrease the value of KcK_cKc
d) Increase the concentration of NOClNOClNOCl
Answer: b - The equilibrium constant KpK_pKp for a gaseous reaction is 2.0 at 300 K. If the volume of the container is doubled, the new value of KpK_pKp is:
a) 4.0
b) 1.0
c) 2.0
d) 0.5
Answer: c - For the reaction H2(g)+I2(g)⇌2HI(g)H_2(g) + I_2(g) \rightleftharpoons 2HI(g)H2(g)+I2(g)⇌2HI(g), decreasing the temperature will:
a) Shift the equilibrium to the right
b) Shift the equilibrium to the left
c) Remain unchanged
d) Increase the concentration of H2H_2H2
Answer: a - In the equilibrium N2(g)+O2(g)⇌2NO(g)N_2(g) + O_2(g) \rightleftharpoons 2NO(g)N2(g)+O2(g)⇌2NO(g), increasing the temperature will:
a) Shift the equilibrium to the right
b) Shift the equilibrium to the left
c) Remain unchanged
d) Decrease the concentration of NO
Answer: a - For the reaction 2NO(g)+O2(g)⇌2NO2(g)2NO(g) + O_2(g) \rightleftharpoons 2NO_2(g)2NO(g)+O2(g)⇌2NO2(g), increasing the pressure will:
a) Shift the equilibrium to the right
b) Shift the equilibrium to the left
c) Remain unchanged
d) Decrease the concentration of NO2NO_2NO2
Answer: a - For the reaction 2SO2(g)+O2(g)⇌2SO3(g)2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3(g)2SO2(g)+O2(g)⇌2SO3(g), decreasing the concentration of O2O_2O2 will:
a) Shift the equilibrium to the right
b) Shift the equilibrium to the left
c) Increase the value of KcK_cKc
d) Decrease the concentration of SO3SO_3SO3
Answer: b - The equilibrium constant KpK_pKp for a gaseous reaction is 3.0 at 400 K. If the temperature is decreased to 300 K, the new value of KpK_pKp is:
a) 1.0
b) 2.0
c) 3.0
d) 4.0
Answer: c - For the reaction H2(g)+Cl2(g)⇌2HCl(g)H_2(g) + Cl_2(g) \rightleftharpoons 2HCl(g)H2(g)+Cl2(g)⇌2HCl(g), increasing the concentration of HCl will:
a) Shift the equilibrium to the right
b) Shift the equilibrium to the left
c) Increase the value of KcK_cKc
d) Decrease the concentration of H2
Answer: b - In the equilibrium CO(g)+Cl2(g)⇌COCl2(g)CO(g) + Cl_2(g) \rightleftharpoons COCl_2(g)CO(g)+Cl2(g)⇌COCl2(g), increasing the volume of the container will:
a) Shift the equilibrium to the right
b) Shift the equilibrium to the left
c) Remain unchanged
d) Increase the concentration of COCl2COCl_2COCl2
Answer: b
