Decide which of the following statements are True and which are False about equi

Question

Decide which of the following statements are True and which are False about equilibrium systems:

A large value of K means the equilibrium position lies far to the right.

For the following reaction: CaCO3(s) ? CaO(s) + CO2(g) the [CaCO3] appears in the denominator of the equilibrium expression.

For a reaction with K >> 1, the rate of the forward reaction is less than the rate of the reverse reaction at equilibrium.

For the following reaction: H2(g) + F2(g) ? 2HF(g) the values of K and Kp are the same.

The value of K at constant temperature depends on the amounts of reactants and products that are mixed together initially.

True A large value of K means the equilibrium position lies far to the right. True For the following reaction: CaCO3(s)-ca(s) + CO2(g) the [CaCO3] appears in the denominator of the equilibrium expression. True For a reaction with K >> 1, the rate of the forward reaction is less than the rate of the reverse reaction at equilibrium. False For the following reaction: H2(g) + F2(g)-2HF(g) the values of K and Kp are the same. False The value of K at constant temperature depends on the amounts of reactants and products that are mixed together initially. See sections 13.1-13.4 of your Chemistry text. Incorrect. Tries s

Explanation / Answer

A large value of K means the equilibrium position lies far to the right.

True

For the following reaction: CaCO3(s) CaO(s) + CO2(g) the [CaCO3] appears in the denominator of the equilibrium expression.

True

For a reaction with K >> 1, the rate of the forward reaction is less than the rate of the reverse reaction at equilibrium.

False

If K>>1, rate of forward reaction is more

For the following reaction: H2(g) + F2(g) 2HF(g) the values of K and Kp are the same.

delta n = 0

Kp = Kc (RT)^delta n

since delta n = 0

Kp = Kc

True

The value of K at constant temperature depends on the amounts of reactants and products that are mixed together initially.

False

K depends on Temperature only

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