KMT Knowledge Check

How many postulates are in the kinetic molecular theory?

• 3

• 4

• 5

• 6

Which of the following is a correctly stated postulate of the KMT?

• Gas particles are stationary.

• Gas particles are in constant, random, linear motion.

• Gas particles are in constant, random, circular motion.

Tags

NGSS.HS-PS2-1

Which of the following is a correctly stated postulate of the KMT?

• Close together and take up a large volume of space.

• Tightly packed in a rigid structure.

• So far apart that their volume is negligible.  

Tags

NGSS.HS-PS3-2

Which state of matter is compressible?

• Solid

• Liquid

• Gas

Which of the following is a correctly stated postulate of the KMT?

• Gas particles can collide and transfer energy making perfectly elastic collisions.  

• Gas particles can collide and do not transfer energy making perfectly elastic collisions.

• Gas particles can collide and transfer energy making inelastic collisions.

• Gas particles can collide and do not transfer energy making inelastic collisions.

If there are a lot of particles moving fast, the system has _____________ pressure.

• low

• high

Elastic collisions result in no loss of kinetic energy.

• TRUE!

• FALSE!

Particles move ____ as the temperature increases.

• faster

• slower

Tags

NGSS.HS-PS1-5

Which of the following samples has the lowest average kinetic energy?

• Nitrogen gas at 15 degrees C.

• Nitrogen gas at 25 degrees C.

• Nitrogen gas at 35 degrees C.

• Nitrogen gas at 5 degrees C.

Tags

NGSS.HS-PS3-2

Which of the following is a unit of pressure?

• mL

• mm of Hg

• ^oC

• moles