Which of the following are true statements about equilibrium systems? 1. For the

Question

Which of the following are true statements about equilibrium systems?

1. For the following reaction at equilibrium:
                       CaCO3(s) CaO(s) + CO2(g)
                       increasing the total pressure by adding Ar(g) will shift the equilibrium to the left.

2. For the following reaction at equilibrium:
                       H2(g) + F2(g) 2HF(g)
                       removing H2 will increase the amount of F2 present once equilibrium is reestablished.

3. Increasing the temperature of an exothermic reaction shifts the equilibrium position to the right.

4. For the following reaction at equilibrium:
                       CaCO3(s) CaO(s) + CO2(g)
                       adding more CaCO3 will shift the equilibrium to the left.

5. For the following reaction at equilibrium:
                       2 H2(g) + O2(g) 2 H2O(g)
                       the equilibrium will shift to the left if the volume is halved.

Explanation / Answer

2. For the following reaction at equilibrium:
                       H2(g) + F2(g) 2HF(g)
                       removing H2 will increase the amount of F2 present once equilibrium is reestablished.

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