KMT

Gas particles have the ________ kinetic energy because they move the fastest.

• least
• most

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Gases are described as having a 

• definite shape and indefinite volume
• indefinite shape and indefinite volume
• definite shape and definite volume
• indefinite shape and definite volume

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Particles (molecules) in a ______________________ have more energy than the other states of matter.

• gas
• solid
• liquid

Tags

NGSS.MS-PS1-4

According to the kinetic molecular theory, gas particles

• are spaced far apart.
• are constantly moving.
• have mass.
• all choices are correct.

According to the KMT, increasing the temperature of particles will

• give off energy

• increase motion

• decrease volume

• increase pressure

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

With the increase in temperature, the average kinetic energy of the molecules increases, leading to a decrease in number of collisions per unit time.

• True
• False

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-2

If the reactant particles collide with less than the activation energy, the particles will be rebound, and no reaction will occur.

• True
• False

Tags

NGSS.HS-PS1-5

What two factors govern whether a collision between reacting particles will be effective?

• orientation and potential energy 
• kinetic energy and temperature 
• kinetic energy and orientation 
• potential energy and kinetic energy