Kinetics and Equilibrium Worksheet

An increase in pressure will shift the equilibrium:

• towards the side with fewer moles of gas

• towards the side with more moles of gas

• has no effect on equilibrium

• always favors the reactants

For each of the following, what effect would an increase in pressure have on equilibrium? b. 4H2(g) + CS2(g) ⇌ CH4(g) + 2H2S(g)

• The equilibrium will shift to the right.

• The equilibrium will shift to the left.

• There will be no effect on equilibrium.

• The reaction will stop.

An increase in pressure will shift the equilibrium of the reaction CO(g) + H2O(g) ⇌ H2(g) + CO2(g) towards:

• the products (right)

• the reactants (left)

• no change in equilibrium

• cannot be determined

For each of the following, what effect would an increase in pressure have on equilibrium? d. H2(g) + F2(g) ⇌ 2HF(g)

• Equilibrium shifts to the right

• Equilibrium shifts to the left

• No effect on equilibrium

• Reaction stops

For each of the following, what effect would an increase in pressure have on equilibrium? e. PCl5(g) ⇌ PCl3(g) + Cl2(g)

• Shifts equilibrium to the right

• Shifts equilibrium to the left

• No effect on equilibrium

• Equilibrium is destroyed

An increase in temperature will generally cause the equilibrium to:

• Shift to the right (favor products)

• Shift to the left (favor reactants)

• Remain unchanged

• Become undefined

For each of the following, what effect would an increase in temperature have on equilibrium?
b. C(s) + H2O(g) + heat ⇌ CO(g) + H2(g)
Increasing the temperature will:

• Shift the equilibrium to the right (products)

• Shift the equilibrium to the left (reactants)

• Have no effect on the equilibrium

• Cause the reaction to stop

For each of the following, what effect would an increase in temperature have on equilibrium? c. PCl3(g) + Cl2(g) ⇌ PCl5(g) + heat

• The equilibrium shifts to the right

• The equilibrium shifts to the left

• There is no effect on equilibrium

• The reaction stops

For each of the following, what effect would an increase in temperature have on equilibrium? d. 2SO2(g) + O2(g) ⇌ 2SO3(g) + heat

• The equilibrium shifts to the right, favoring SO3 formation.

• The equilibrium shifts to the left, favoring SO2 and O2 formation.

• There is no effect on the equilibrium.

• The reaction stops completely.

For each of the following, what effect would an increase in temperature have on equilibrium? e. H2O(l) ⇌ H+(aq) + OH–(aq) ΔH = 55.8 kJ

• The equilibrium shifts to the right, increasing [H+] and [OH–]

• The equilibrium shifts to the left, decreasing [H+] and [OH–]

• There is no effect on the equilibrium position

• The reaction stops completely