States of Matter and Thermochem review

Are particles of matter always in motion?

• yes
• no

The motion energy of particles is called...

• kinetic energy
• connecting energy
• electrostatic energy
• gravitational energy

Temperature is a measure of particle...

• kinetic energy
• size
• colour
• electrostatic force

Absolute zero is the temperature (in Kelvin), at which, only in theory...

• all particles stop moving
• time stands still
• space and time merge
• energy goes to infinity

Collisions in which particles transfer all their kinetic energy to other particles are called ___.

• elastic

• inelastic

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

760 mmHg is equal to

• 1 torr

• 760 atm

• 760 torr

• 101 Pa

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

What does STP (standard temperature and pressure) stand for?

• 0.0 degree Celcius and 1 atm

• 1.0 mmHg and 273 degree Kelvin

• 1.0 degree Celcius and 0 atm

• 1.0 atm 273 degree Celcius

How many mm Hg is a pressure of 1.05 atm?

• 529 mm Hg

• 798 mm Hg

• 104.8 mm Hg

• 760 mm Hg