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CHM135H1 Lecture Notes - Dynamic Equilibrium

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Chemistry
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CHM135H1 Full Course Notes
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CHM135H1 Full Course Notes
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Document Summary

When the concentration of reactant and products are constant, the system is at dynamic equilibrium. B- suppose a chemical system is at equilibrium. You disturb the equilibrium by altering the concentration of the reactants. You find that the reactants are being used at a constant rate such that the rate of forward reaction is constant. You conclude that the system has reached dynamic equilibrium. D- you have a chemical reaction at dynamic equilibrium. You disturb the system by changing its volume. You observe that the system changes its concentration of reactants and products to a new value.

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Related Questions

4. Consider the following: 2NH3(g) ⇄ N2(g) + 3H2(g)

A flask is initially filled with NH3. As the system approaches equilibrium, the rate of the forward reaction

A. Increases as the rate of the reverse reaction decreases

B. Decreases as the rate of the reverse reaction increases

C. Increases as the rate of the reverse reaction increases

D. Decreases as the rate of the reverse reaction decreases

5. A system at equilibrium is said to be dynamic because at equilibrium the

A. Temperature does not change

B. Macroscopic properties are constant

C. Forward and reverse reactions continue to occur

D. Concentrations of reactants and products are constant

6. In all systems at equilibrium, the

A. Concentration of reactants is less than the concentration of products

B. Concentration of reactants and the concentration of products are equal

C. Concentration of reactants is greater than the concentration of products

D. Concentration of reactants and the concentration of products are constant

When a chemical system is at equilibrium, which of the following statements about the equilibrium shown is always true?

(a) the concentrations of the reactants are equal to the concentration of the products.

(b) the concentrations of the reactants and products have reached a constant value.

(c) the forward and reverse reactions have stopped.

(d) the reaction quotient, Q, has reached a minimum.

When a chemical system is at equilibrium, which of the following statements about the equilibrium shown are always true?

a. the concentrations of the reactants are equal to the concentrations of the products

b. the concentrations of the reactants and products have reached constant values

c. the forward and reverse reactions have stopped

d. the reaction quotient, Q, has reached a minimum