Chapter 10

Question 1

1 atm =

Answer 1

760 mm Hg = 760 torr = 1.01325 • 10^5 Pa = 14.70 psi

Question 2

Boyle’s Law

Answer 2

At a constant temperature, the volume of gas varies inversely with the pressure exerted on it

Question 3

Charles’ Law

Answer 3

At a fixed pressure, the volume of a gas is proportional to the temperature

Question 4

Gay-Lussac’s Law

Answer 4

Pressure is directly proportional to temperature

Question 5

Avogadro’s Law

Answer 5

At constant temperature and pressure, the volume of a gas is proportional to the number of moles of a gas

Question 6

Dalton’s Law

Answer 6

The total pressure of a mixture of gases is simply the sum of the partial pressures of the component gases

Question 7

Kinetic Molecular Theory (KMT) Postulate #1

Answer 7

Molecules are in constant and random motion

Question 8

Kinetic Molecular Theory (KMT) Postulate #2

Answer 8

Space occupied by gas molecules is small compared to volume of the container

Question 9

Kinetic Molecular Theory (KMT) Postulate #3

Answer 9

Attractive forces between molecules are assumed to be small/negligible

Question 10

Kinetic Molecular Theory (KMT) Postulate #4

Answer 10

Molecules collide and energy is transferred between molecules. The collisions are assumed to be completely elastic (no energy loss).

Question 11

Kinetic Molecular Theory (KMT) Postulate #5

Answer 11

Pressure exerted by a gas is caused by collisions of gas molecules on the walls of the container.
More collisions = more pressure

Question 12

Graham’s Law of Effusion

Answer 12

Rate of effusion of a gas is inversely proportional to the square root of the mass of the particles

Question 13

At high pressure or low temperature, some assumptions of the KMT are no longer valid

Answer 13

1. Real gases have molecules that occupy some actual volume
2. Real gases may attract each other to some extent

Question 14

At high pressure

Answer 14

The b term dominates

Question 15

At low temperature

Answer 15

The a term dominates