Equilibrium Constant

Question 1

what is total pressure?

Answer 1

sum of all the partial pressures of the individual gases

Question 2

what is a mole fraction?

Answer 2

proportion of gas in a gas mixture

Question 3

give an equation to calculate the mole fraction of a gas

Answer 3

number of moles of gas / total number of moles of gas in the mixture

Question 4

give an equation to calcuate the partial pressure of a gas

Answer 4

partial pressure = mole fraction x total pressure

Question 5

what can be used to find the eqm moles for a reaction (in general)

Answer 5

initial moles, change in moles, eqm moles

Question 6

what affects kp?

Answer 6

temperature: - kp only valid for one temp as changing temp changes eqm pressures

Question 7

what effect does increasing temp have on the kp and yield of an exothermic reaction?

Answer 7

• dec kp
• dec eqm yield

Question 8

what effect does decreasing temp have on the kp of an exothermic reaction?

Answer 8

• inc kp
• inc eqm yield

Question 9

what effect does increasing temp have on the kp of an endothermic reaction?

Answer 9

• inc kp
• inc eqm yield

Question 10

what effect does decreasing temp have on the kp of an endothermic reaction?

Answer 10

• dec kp
• dec eqm yield