Gas Laws, Ideal Gas Laws, and Real Gases

Question 1

Units of Pressure

Answer 1

1.01325e5 Pa = 1 atm = 760 mmHg = 760 torr

Question 2

What happens to the pressure if the volume of a container is decreased?

Answer 2

Increased; P is proportionate to 1/v

Question 3

What happens to the pressure if we increase the temperature inside the container?

Answer 3

Increased; P is proportionate to T

Question 4

Boyle’s Law

Answer 4

P1V1 = P2V2
- used only at constant T and n

Question 5

Charle’s Law

Answer 5

V1/T1 = V2/T2
- used only with constant P and n

Question 6

Avogadro’s Law

Answer 6

1 mol = 22.4 L ONLY AT STP

Question 7

Standard Temperature and Pressure

Answer 7

1 atm and 0 degrees C

Question 8

Ideal Gas Law

Answer 8

PV = nRT

Question 9

Gas constant (R)

Answer 9

.08206 l x atm/mol x K

Question 10

Alternate form of Ideal Gas Law

Answer 10

P1V1/n1T1 = P2V2/n2T2

Question 11

Gas Density and Molar Mass IGL formula

Answer 11

PMm = dRT
- d = density
- Mm = molar mass

Question 12

Dalton’s Law

Answer 12

The pressure of a single gas in a mixture of gases it called its partial pressure

Question 13

Real Gases

Answer 13

do not often behave like ideal gases at high pressure or low temperature

Question 14

Ideal Gas Laws assume

Answer 14

1. no attractions between gas molecules
2. gas molecules do not take up space