Bellwork 3 Week 6 3rd Nine Weeks

In Boyle's Law, pressure and volume are _____________ proportional.

• inversely

• directly

• indirectly

• not

Which of the following are principles of Kinetic Molecular Theory?

• Small particles make up all matter.

• Energy is not lost when particles collide.

• Particles exhibit constant, random motion.

• All of the other answer choices are true.

If you squeeze an inflated balloon into a smaller space, the pressure inside the balloon will _____________.

• increase

• decrease

• remain constant

• decrease and increase in a constant cycle

Which of the following is the property of a gas that deals with the force with which particles hit the inside area of a container?

• Temperature

• Volume

• Number of moles

• Pressure

The DIRECT relationship between the temperature and volume of a gas is described by _____________ Law.

• Boyle's

• Gay-Lussac's

• Charles'

• Avogadro's

At a constant volume for a sealed gas, as temperature decreases, pressure

• decreases because the particles slow down and hit the inside of the container softer and less often.

• decreases because the particles speed up and hit the inside of the container harder and more often.

• increases because the particles slow down and hit the inside of the container softer and less often.

• increases because the particles speed up and hit the inside of the container harder and more often.

What do the particles of a gas do when heated?

• Move slower and come together

• Move faster and come together

• Move slower and spread apart

• Move faster and spread apart

What is the relationship between pressure and volume from Boyle's actual data shown in the table from top to bottom?

• Volume decreases, Pressure increases

• Volume and Pressure both increase together

• Volume increases, Pressure decreases

• Volume and Pressure remain constant.

According to kinetic molecular theory: at constant temperature, increasing the volume will decrease the pressure because...

• the gas particles must travel farther from wall to wall.

• P and V are on the same side of the ideal gas law equation.

• the average velocity of the gas particles decreases.

• the potential energy of the gas particles has gone down

Answer explanation

farther travel = fewer collisions per second

In kinetic molecular theory:

pressure = collisions per second between gas and walls of container

temperature = average kinetic energy of gas molecules (as measured by temperature)

A student inflates a balloon with helium then places it in the freezer. The student should expect

• the balloon's volume to increase

• the balloon's volume to decrease

• the balloon's moles to increase

• the balloon's moles to decrease