Chemistry States of Matter

The energy of movement is ___.

• potential energy

• kinetic energy

• mechanical energy

Tags

NGSS.HS-PS3-2

The force of attraction between molecules is ___.

• intermolecular forces

• bridge forces

• chemical bonds

What is the difference between particles in a gas and a solid?

• gas particles are closer together
• solid particles move faster than gas particles
• solid particles expand on heating
• gas particles have more kinetic energy than solid particles

Tags

NGSS.MS-PS1-4

How can we increase the gas pressure inside a sealed container?

• Increase the number of particles inside the container
• Increase the temperature
• Decrease the volume of the container
• All of these

What are the factors that can affect air pressure?

• Surface Area

• Volume

• Temperature

• Weight

Tags

NGSS.MS-PS3-4

Air pressure inside the straw is reduced because ..

• air is sucked out from the straw and becomes semi vacuum

• volume of air inside the straw becomes larger

• temperature of air inside the straw becomes lower

A gas is at a pressure of 95 kPa. What is its pressure in atmospheres?

• 1.5 atm

• 1.09 atm

• 0.94 atm

• 0.82 atm

How many mm Hg is a pressure of 1.05 atm?

• 529 mm Hg

• 798 mm Hg

• 104.8 mm Hg

• 760 mm Hg

Convert 2.75 x10⁵ Pa to atmospheres

• 2.71 atm

• 1.93 atm

• 1.08 atm

• 0.73 atm

A pressure gauge displays a pressure of 783 torr. How many psi is this?

• 13.9 psi

• 15.1 psi

• 18.5 psi

• 37.1 psi