Equilibrium Constants and Partial Pressures Quiz

What is the equilibrium constant used for gaseous equilibria?

• Kp

• Ka

• Kb

• Kw

In what state must all reactants and products be for Kp to be calculated?

• Gaseous state

• Liquid state

• Solid state

• Plasma state

What is the term for the pressure exerted by a single gas in a mixture?

• Partial pressure

• Total pressure

• Vapor pressure

• Atmospheric pressure

How is the partial pressure of a substance calculated?

• Using the molar fraction and total pressure

• Using the volume and temperature

• Using the density and molar mass

• Using the temperature and volume

What is the unit commonly used to measure partial pressures?

• Pascals

• Newtons

• Joules

• Liters

What does Kp represent in a gaseous equilibrium?

• The concentration of reactants

• The concentration of products

• The partial pressure equilibrium constant

• The temperature of the system

How is Kp calculated for a gaseous equilibrium?

• By dividing the partial pressures of reactants by products

• By multiplying the partial pressures of reactants

• By dividing the partial pressures of products by reactants

• By adding the partial pressures of products

What happens to the partial pressure in the Kp expression when the number of moles changes?

• It remains constant

• It decreases

• It raises to a power equal to the number of moles

• It lowers to a power equal to the number of moles

What is the effect of temperature on the partial pressure of a gas in a closed system?

• It increases with temperature

• It decreases with temperature

• It remains constant

• It depends on the volume

Which of the following factors does not affect the partial pressure of a gas in a mixture?

• Volume of the container

• Temperature of the system

• Molar mass of the gas

• Total pressure of the mixture