Unit 8 Review

Question 1

Of the following 2 gases, which would you predict to diffuse more rapidly? A: CO B: CO2

Answer 1

A: CO

Question 2

Of the following 2 gases, which would you predict to diffuse more rapidly? A: SO2 B: Cl2

Answer 2

A: SO2

Question 3

A sealed vessel, containing nitrogen dioxide and carbon dioxide gases has a total pressure of 2558 psi. What is the partial pressure of nitrogen dioxide (in psi) if the partial pressure of carbon dioxide is 795 psi?

Answer 3

1,763

Question 4

I sealed the cell containing argon, oxygen, and nitrogen has a total pressure of 1514 psi and partial pressures of 325 psi for oxygen and 649 psi for nitrogen. What is the partial pressure of argon in psi?

Answer 4

540

Question 5

The boiling point of CH3CH2CH2NH2 would be ________ the boiling point of CH3NH2.

Answer 5

Higher than

Question 6

The boiling point of CH3OCH3 would be ______ the boiling point of CH3CH2OH.

Answer 6

Lower than

Question 7

_____ occurs when the vapor pressure of a liquid is equal to the external atmospheric pressure.

Answer 7

Boiling

Question 8

______ is a measure of the resistance of a liquid to flow.

Answer 8

Viscosity

Question 9

The solid phase of a compound has a definite shape and volumes because its particles _________.

Answer 9

Vibrate around fixed points

Question 10

_______ describes the temperature at which a solid’s attractive forces are overcome and it becomes a liquid.

Answer 10

Melting point