Gas equilibria and Kp

Question 1

what is partial pressure

Answer 1

In a mixture of gases, each individual gas exerts its own pressure

Question 2

what is a mole fraction

Answer 2

Its the proportion of gas mixture that is made up of a particular gas

eg 4 moles of gas in total, and if 2 moles is gas A
then mole fraction of gas A is 1/2

Question 3

mole fraction FORMULA

Answer 3

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

Question 4

Partial pressure formula

Answer 4

mole fraction of gas x Total pressure of the mixture

Question 5

what’s the different between kp and kc

Answer 5

kp is for partial pressure ( gases)

kc is for concentrations

Question 6

kp formula way to remember

Answer 6

products/reactants

with their respective big numbers acting as powers

Question 7

to work out kp units…

Answer 7

Use kpa as a unit

and work out the same way like we did for kc

Question 8

what is kp affected by

and how does changing this thing affect equilibrium

Answer 8

ONLY affected by temperature just like kc

changing temperature changes how much product is formed at equilibrium, this changes the mole fractions of gases present, which changes partial pressures

Question 9

if amount of product decreases then kp……

Answer 9

decreases

Question 10

What is a homogenous equilibrium system?

Answer 10

One in which everything in the equilibrium mixture is in the SAME PHASE