Chapter 19 Equilibrium

Question 1

How do you calculate total pressure of a gas mixture?

Answer 1

Total pressure is the sum of all the partial pressures of the individual gases

Question 2

What is a mole fraction?

Answer 2

The proportion of a gas mixture that is a particular gas

Question 3

How do you calcualte mole fractions?

Answer 3

Mole fraction of a gas in a mixture = Number of moles of gas / Total number of moles of gas in the mixture

Question 4

What effect does concentration and pressure change have on the equilibrium constant?

Answer 4

Concentration and pressure changes don’t affect the equilibrium position

Question 5

What is included in the expression for the equilibrium constant if the mixture is homogeneous?

Answer 5

All the reactants and products are put into the expression for the equilibrium constant

Question 6

What is included in the expression for the equilibrium constant if the mixture is heterogeneous?

Answer 6

Only gases and aqueous sustances go into the expression for the equilibrium constant