Using Le Chatelier\'s Principle to predict the result of changing concent... Mic

Question

Using Le Chatelier's Principle to predict the result of changing concent... Michael- Hydrogen sulfide and oxygen react to form sulfur dioxide and water, like this: 2H,s(g)+3O2(g) 2SO2(g)+2H2O(g) Suppose a mixture of H2S, O2, SO2 and H20 has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. change in composition shift in equilibrium to the right | The pressure of H2S will E? [ ) ' e to the left | Some SO2 is added The pressure of 02 will ) (none) to the right to the left (none) to the right The pressure of H2S will The pressure of SO2 will (? ? ) The volume of the vessel is The pressure of soz will reduced. to the left The pressure of 1120 will V (none) go up. go down.

Explanation / Answer

According to Le Chatelier's Principle, adding product will shift the equilibrium to left

a) Increase
b) Increase

According to Le Chatelier's Principle, removing reactant will shift the equilibrium to left

c) Increase
d) decrease

Decreased volume shifts the system to the side of the reaction that has fewer moles of gas.
So, it will shift the equilibrium to right

e) Increase
f) Increase

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