Stochiometry

Question 1

State Charles law

Answer 1

At a constant pressure, the volume of the mass of any given gas is directly proportional to the Kelvin temperature.

Question 2

What is one mole of a substance?

Answer 2

The SI unit for amount of substance containing Avogadro’s number of particles

Question 3

What is boyles’ law

Answer 3

At a constant temperature, the volume of a given mass of any gas is inversely proportional to the pressure on the gas.

Question 4

Avogadro law

Answer 4

Equal volumes of gases, under the same conditions of temperature and pressure contain equal numbers of molecules.

Question 5

Ideal gases

Answer 5

Ideal gases obey all the assumptions of kinetic theory under all conditions of temperature and pressure

Question 6

State 2 assumptions of kinetic theory

Answer 6

1. Collisions are perfectly elastic

2. Average kinetic energy is proportional to the Kelvin temperature

Question 7

State Gay-Lussac’s law of combining powers.

Answer 7

In a gaseous reaction, the volumes of gaseous reactants and any gaseous products are in the ratio of small whole numbers provided volumes are measured at the same conditions of temperature and pressure

Question 8

Give 2 reasons why real gases deviate from ideal gases

Answer 8

1. There are attractive/ repulsive forces

2. Diameters of particles are not negligible compared to the distances between them