Concentration and Le Chateliers Principle Le Chate1liers principle concerns the

Question

Concentration and Le Chateliers Principle Le Chate1liers principle concerns the reaction of systems at equilibrium to perturbations that disturb the equilibrium. Le Chateliers principle states that systems will always respond to relieve the stress placed upon them. That is, they will respond in such a way so as to return to equilibrium. Chemical reactions can be displaced from their equilibrium positions by changing the concentrations of reactants or products. These changes affect the value of the reaction quotient, Q. The reaction then shifts to increase or decrease Q until it is again equal to the equilibrium constant, K. For the reaction C(s) + H2O(g) H2(g) + CO(g) classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the reaction. Drag the appropriate items to their respective bins.

Explanation / Answer

leftward shift : add some CO , add some hydrogen and remove some water

rightward shift : remove some CO , add some water and remove some hydrogen

no shift : add some solid C and remove some solid C

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