Question

For each of the following changes at equilibrium, indicate whether the equilibrium shifts in the direction...

For each of the following changes at equilibrium, indicate whether the equilibrium shifts in the direction of products, reactants, or does not change: CaCO3(s)+heat⇌CaO(s)+CO2(g)

1) increasing the temperature

shifts equilibrium in the direction of the reactants
does not change
shifts equilibrium in the direction of the products

2) decreasing the volume of the container

shifts equilibrium in the direction of the reactants
shifts equilibrium in the direction of the products

does not change

3) adding a catalyst

shifts equilibrium in the direction of the reactants
shifts equilibrium in the direction of the products

does not change

4) adding more CaO(s)

does not change
shifts equilibrium in the direction of the reactants
shifts equilibrium in the direction of the products
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Homework Answers

Answer #1

According to the le chatelier's principle reaction adjust itself to maintain the equilibrium

1. Endothermic reaction , so on increasing the temperature it will move forward and increase the concentration of products

2. Decrease the volume will shift equilibrium towards few moles of gas side here reactant side has no gas ... So it will shift towards reactant.

3. Adding a catalyst will not affect the equilibrium it will change only kinetics ( how fast reaction will reach the equilibrium )

4. It will also not change because it is present in solid state and it is not considered in equilibrium equation

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