Equilibrium and Equilibrium Constants Quiz

What is meant by dynamic equilibrium in a chemical reaction?

• The reaction only proceeds in one direction.

• The amounts of reactants and products are equal.

• The reaction stops completely.

• The forward and reverse reactions occur at the same rate.

In the given example, what is the purpose of using an ICE table?

• To calculate the temperature of the reaction.

• To find the pH of the solution.

• To determine the initial, change, and equilibrium concentrations.

• To measure the pressure of the gases involved.

How does the equilibrium composition depend on the starting substances?

• It depends on the temperature only.

• It is independent of the starting substances.

• It is always a 50/50 split between reactants and products.

• It varies with the initial amounts of reactants.

What is the role of coefficients in the equilibrium constant expression?

• They are subtracted from the concentration values.

• They are added to the concentration values.

• They become the exponents in the expression.

• They are ignored in the expression.

Which of the following is true about homogeneous equilibria?

• Only solids are involved in the reaction.

• All reactants and products are in the same phase.

• Only liquids are involved in the reaction.

• All reactants and products are in different phases.

How can the equilibrium constant KC be determined from rate data?

• By calculating the pH of the solution.

• By comparing the rate constants of forward and reverse reactions.

• By using the ideal gas law.

• By measuring the temperature change.

What is KP in the context of equilibrium constants?

• Equilibrium constant using partial pressures.

• Equilibrium constant using volume.

• Equilibrium constant using molarity.

• Equilibrium constant using temperature.

How is KP related to KC?

• KP is always greater than KC.

• KP is equal to KC times a constant involving temperature and gas constant.

• KP is the square of KC.

• KP is unrelated to KC.

What is the significance of Delta n in the KP calculation?

• It is the change in pressure.

• It is the difference in concentration of reactants and products.

• It is the difference in moles of gaseous products and reactants.

• It represents the change in temperature.

When adding reactions to get an overall reaction, how is the overall equilibrium constant determined?

• By subtracting the individual constants.

• By dividing the individual constants.

• By adding the individual constants.

• By multiplying the individual constants.