2.4: Simple Gas Laws

Question 1

Describe Boyle’s law, provide ex

Answer 1

Volume of gas is inversely proportional to temperature
Ex: inhaling and exhaling

Question 2

Boyle’s law formula, graph looks like…

Answer 2

P1V1 = P2V2, curve (Y decreases as X increases)

Question 3

Explain Boyle’s law using kinetic theory

Answer 3

Decrease in volume allows particles to get closer together, increasing # of collisions and therefore increasing pressure

Question 4

Describe Charles’ law

Answer 4

Volume of mass of gas proportional to K temp

Question 5

Charles’ law formula, graph looks like…

Answer 5

V1/T1 = V2/T2, linear x and y increasing

Question 6

Explain Charles’ law using kinetic theory

Answer 6

As gas is heated, particles have more Ek, making them move faster, causing an increasing in collisions and therefore increase in pressure. Gas then expands to equalize pressure with air outside container, increasing volume.

Question 7

Describe Guy-Lussac’s law

Answer 7

Pressure is proportional to K temp

Question 8

Guy-Lussac’s law formula, graph looks like…

Answer 8

P1/T1 = P2/T2, linear x and y increasing

Question 9

Explain Guy-Lussac’s law using kinetic theory

Answer 9

As temp increases, Ek of particles increases, making them move faster, resulting in more collisions, therefore increasing pressure.

Question 10

Describe Avogadro’s law

Answer 10

Volume of a gas is proportional to mass of a gas in moles

Question 11

Avogadro’s law formula, graph looks like…

Answer 11

V1/n1 = V2/n2, linear x and y increasing

Question 12

Explain Avogadro’s law using kinetic theory

Answer 12

Adding more gas particles to a container will cause more collisions, forcing particles to spread out until pressure in container is equal to that of the outside, therefore increasing volume