Chapter 8.2

Question 1

Describe the general characteristics of ideal gases in terms of intermolecular forces

Answer 1

• ideal gases represent a hypothetical gas with molecules that have no intermolecular forces
• > therefore, they don’t occupy volume

Question 2

When do real gases deviate from that of ideal gases

Answer 2

-real gases deviate from that of ideal gases at low temperatures and high pressure(low volume)

Question 3

What is Avogadro’s principle

Answer 3

-it is that all gases at a constant temperature and pressure occupy volumes that are directly proportional to the number of moles of gas present

Question 4

What is Dalton’s law of partial pressures

Answer 4

-total pressure of a gaseous mixture is equal to the sum of the partial pressures of the individual components

Question 5

What is vapor pressure? What does it do to gases at the top of the container?

Answer 5

• it is the pressure exerted by evaporative particles above the surface of the liquid
• it forces some of the gas back into the liquid phase
• > therefore, equilibrium is reached between evaporation and condensation