Select all of the correct statements about reaction quotients and equilibrium co

Question

Select all of the correct statements about reaction quotients and equilibrium constants from the choices below.

1) A reaction quotient equals the equilibrium constant at equilibrium.

2) As a reaction progresses forward toward equilibrium K rises until it reaches Q.

3) As a reaction progresses backwards toward equilibrium K is the lowest value Q attains.

4) If Q = K the reaction is already at equilibrium.

5) As concentrations change Q changes, whereas K stays constant.

6) If Q > K the reaction must progress backward to attain equilibrium.

Explanation / Answer

correct answers :   note : all answers are correct

1) A reaction quotient equals the equilibrium constant at equilibrium.

2) As a reaction progresses forward toward equilibrium K rises until it reaches Q.

3) As a reaction progresses backwards toward equilibrium K is the lowest value Q attains

4) If Q = K the reaction is already at equilibrium.

5) As concentrations change Q changes, whereas K stays constant.

6) If Q > K the reaction must progress backward to attain equilibrium

explanation:   this relation is used to solve this problem

Q > K system will shift left (to reactant side) to reach equilibrium
(reactants and products Q and approaches K)
Q < K system will shift right (to product side) to reach equilibrium
(reactants and products Q and approaches K)
Q = K at equilibrium (no shift)

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