Chem B Review

If the amount of gas and volume does not change, when the temperature increases

• A. Pressure will increase

• B. Pressure will decrease

• C. Pressure will not change

Which of the following might occur if the amount of gas is increased?

• A. The volume will increase

• B. The pressure will decrease

• C. The temperature will not change

• D. The gas constant will be modified

When solving problems that deal with temperature it is best to use which unit of temperature?

• A. °C

• B. K

• C. It doesn't matter

If the volume of a gas is tripled while the temperature is held constant, the pressure will:

• A. also get 3 times bigger

• B. not change

• C. be reduced to 1/3

• D. get bigger or smaller depending on the type of gas

A gas occupies .5 L at 20°C. What will be the new volume when the temperature is changed to 45 °C? Convert to Kelvin

• A. 11.25 L

• B. 8.78 L

• C. 5.43 L

• D. 2.22 L

A gas at 1.2 atm, and has a volume of 34 L. Assuming that temperature is not changed, what will be the expected pressure if the volume was reduced to 22.5 L?'

• A. 9.58 atm

• B. 0.79 atm

• C. 1.81 atm

• D. 1.2 atm

Temperature and Volume are

• A. Directly

• B. Inversely related.

• C. Not related

Gas particles are always 'in constant, random motion,

• A) TRUE

• B) FALSE

Which is an example of an amorphous solid?

• A) graphite

• B) rubber

• C) diamonds

What is the cause of all the very unique properties of water?

• A) because water has 2 triple points on the phase diagram

• B) stronger than average intermolecular forces

• C) molecules move at a higher average kinetic energy than most liquids

• D) the kinetic theory does not apply to water