KMT and Gas Behaviors

Change of state from liquid to a gas:

• Sublimation

• Condensation

• Vaporization

• All of the above

Tags

NGSS.MS-PS1-4

At constant pressure, how are the temperature and volume of a gas related?

• The are directly proportional

• They are inversely proportional

• They are constant

• They are indirectly proportional

At constant temperature, the pressure and volume of a gas are ______ proportional.

• inversely

• directly

The planet Venus is surrounded by a thick layer of gases. In fact, the atmospheric pressure on Venus is over 90 times greater than the atmospheric pressure on Earth. Which statements are true about boiling water on Venus? Choose the two statements that apply.

• Water will boil at a higher temperature on Venus than on Earth.

• Water will boil at a lower temperature on Venus than on Earth.

• The temperature of water will remain constant while it boils

• The temperature of water will increase as it boils.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Min was writing about changes in the state of matter for a research paper. Which of these changes might she include as examples of sublimation? Choose the two statements that apply.

• Clothing is hung outside on a day when the temperature is below the freezing point of water. The clothes dry, even though they freeze first.

• An ice cube melts on the floor, then it evaporates.

• Bromine is a reddish-brown, liquid element. In a closed container, a reddishbrown gas exists above the surface of the bromine.

• Dry ice changes directly to carbon dioxide gas.

Tags

NGSS.MS-PS1-4

The pistons in an engine show how gas behavior can be applied to everyday events. Volume, temperature, and pressure of a gas are all involved in the working of pistons. Which TWO statements show how these factors are related in pistons according to Charles’ law and Boyle’s law?

• As temperature increases, pressure increases.

• When the temperature is raised, volume increases.

• The piston moves up, decreasing volume and increasing pressure.

• Volume remains constant whenever either pressure or temperature changes.

_______ is a measure of the average energy of random motion of particles within any substance.

Tags

NGSS.MS-PS1-4

The _____ of a gas is the force of its outward push divided by the area of the walls of the container.

• pressure

• volume

• energy

• temperature

Tags

NGSS.MS-PS2-2

When the pressure of a gas at a constant temperature is increased, the volume of the gas _______

When pressure is decreased, the volume

• increases

• stays the same

• decreases

• does not change