States of Matter

The word kinetic refers to :

The energy an object ha because of its motion is called

A standard set of conditions used for comparing properties of different gases and corresponds to a temperature of 0°C and approximately atmospheric pressure at sea level (100 kPa).

• standard temperature and pressure

• standardized test and pictures

• stand tall and pick

Gas pressure is the result of forces between

• molecules of gas and the container walls

• molecules of liquid and the container volume

• molecules of vibrating atoms

Changes in temperature and volume affect the speed of the particles and the number of collisions between particles.

• True

• False

Select all the statements that are true when it comes to temperature volume and pressure.

• At low temperatures, the particles of a gas move fast. They are much more likely to collide, so the pressure is lower.

• At high temperature, the particles move faster. Increasing the likelihood and force of collisions so the pressure is higher.

• If more particles are added, the likelihood of collisions goes up, so the pressure is higher.

• If the particles are compressed into a smaller space, they get further apart. This decreases the likelihood of collisions so the pressure is higher.

Select all the units you can use to show pressure

• kPa & psi

• meters squared

• atmospheres (atm)

• mm Hg

What pressure, in atmospheres, does a gas exert at 385 mm Hg?

1 atm = 101.3 kPa

1 atm = 760 mm Hg

The pressure at the top of Mount Everest is 33.7 kPa. Is that pressure greater or less than 0.25 atm?

1 atm = 101.3 kPa

• less than 0.25 atm

• greater than 0.25 atm

In a gas, the particles are free to move in what ways. Select all that apply

• condensation

• sublimation

• rotation

• vibration

• translation