Intro to Gases and KMT

Which of the following is not one of the assumptions of the kinetic molecular theory for ideal gases?

• The particles attract and then repel each other.

• The collisions between particles are elastic

• The particles are in constant random motion.

• The particle size is very small compared to the space between the particles.

Gas pressure is caused by

• gas molecules colliding with surfaces
• gas molecules condensing to a liquid
• gas molecules hitting other gas molecule
• barometers

Which of the following would increase the pressure on a system?

• Increase the Temperature
• Pump in more gas
• Decrease the volume
• All of these

Which container will have a lower pressure?

• left
• right
• they both have the same pressure
• I don't know

Which of the following would double the pressure of a gas?

• Doubling the volume

• Doubling the temperature

• halving the temperature

• decreases the number of moles

"STP" in chemistry is the abbreviation for:

• Stone Temple Pilots

• Standard Temperature and Pressure

• Scientifically Treated Petroleum

• Space Test Program

"STP" is equal to the following:

• 273 K, 1 atm

• 22 K, 1 atm

• 0 K, 273 atm

• 273 C, 760 mmHg

Kinetic energy is the energy of————-

• Temperature

• Ocean

• Lotion

• Motion

Molecules with more kinetic energy move ———- than molecules with less kinetic energy

• Lower

• Faster

• Higher

• Slower

Which sample has the higher temperature?

• Sample B because it has more thermal energy and more molecules

• Sample B because the molecules are brown

• Sample A because the molecules are moving faster and have more average kinetic energy

• Sample A because yellow is such a hot color