O KINETICS AND EQUILIBRIUM Using Le Chatelier\'s Principle to predict the result

Question

O KINETICS AND EQUILIBRIUM Using Le Chatelier's Principle to predict the result of cha... ulfur dioxide and oxygen react to form sulfur trioxide, like this: 2502(g)+02(g-2503(9) The reaction is exothermic. Suppose a mixture of SO2, O, and SO, 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. perturbation change in composition shift in equilibrium , to the right O to the left O (none) The temperature is raised. The pressure of 02 will p o to the rigt to the left (none) The temperaturs lowered The pressure of soy will

Explanation / Answer

According to Le chatelier's principle , whenever a reaction at equillibrium is subjected to change in reaction conditions , the reaction moves in a direction where the equillibrium can be re-estabilished again.

So here :

The temperature is increased :

The pressure of O2 will go up

Shift in equillibrium : to the left

The temperature is lowered :

The pressure of SO3 will go up

Shift in equillibrium : to the right

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