Chemistry Gases

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, straight-line 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

Tags

NGSS.MS-PS2-1

Which graph represents the relationship between pressure and volume for a sample of an ideal gas at constant temperature?

• 1

• 2

• 3

• 4

As the temperature of a given sample of a gas decreases at constant pressure, the volume of the gas

• decreases

• increases

• remains the same

Tags

NGSS.MS-PS1-4

What is CO₂?

• Carbon Monoxide

• Carbon Dioxide

• Carbon Trioxide

• Oxygen

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Which is a quality that only gasses display

• Spread out to fill all available space

• Take the shape of their container

• Can't be compressed

• All of these

Air is made up of mostly nitrogen gas with about 22% of air containing oxygen, CO₂, other gases . Which is the solvent in this solution of gas?

• nitrogen

• oxygen

• CO₂

• Other Gases

A gas has ​​ (a)   particle motion and ​ (b)   attractive forces between particles.

• fast

• low

• slow

• high

Tags

NGSS.MS-PS1-4

Which one of the following should be increased in order to increase the solubility of a gas?

• Temperature

• Pressure

This is an unreactive gas with a melting point of -272 ^oC and a boiling point of -269 ^oC. It does not conduct electricity and so it is a ​ (a)   . It is very light. It is used in airships and inflate balloons. It is ​ (b)  

• non-metal

• helium

• metal

• nitrogen

• hydrogen

Tags

NGSS.MS-PS1-4