Phases and Equilibria

Question 1

What are ideal gases?

Answer 1

Those fitting the kinetic molecular theory of gases exactly

Question 2

What is the standard molar volume?

Answer 2

the volume occupied by one mole at STP

22.4L

Question 3

What is described by the kinetic molecular theory of gases?

Answer 3

the behaviour of matter in a gas state

Question 4

What is charles’ law?

Answer 4

volume of gas is directly proportional to the absolute temperature

Question 5

What is boyle’s law?

Answer 5

volume of a fixed weight of gas held at constant temp varies inversely with pressure

Question 6

What is the ideal gas equation?

What do each of the symbols mean and give their units.

Answer 6

PV = nRT

P ressure - Pa
V olume - m³
n umber of moles
R gas constant
T emperature - K

Question 7

What is the partial pressure?

Answer 7

pressure that each individual component would exert were it occupying the entire volume V at temperature T.

Question 8

What is dalton’s law?

Answer 8

total pressure for a mixture of gases is equal to sum of partial pressures that each individual component would exert if alone in the container

Question 9

What is mole fraction?

Answer 9

moles of a certain gas in mixture / total moles of all gases in mixture