Gases Review

What would you expect to see if temperature of a gas incresed?

• volume would decrease

• volume would increase

• number of moles would increase

• number of moles would decrease

Which of the following would increase the (gas) pressure of a system?

• Increase the Temperature
• Pump in more gas
• Decrease the volume
• All of these

Tags

NGSS.HS-PS1-6

In the ideal gas law, which variable represents the gas constant?

• n
• R
• T
• V

When the temperature is constant (k) inside a balloon, if you add pressure on it, the volume will ..... 

• Decrease
• Increase
• Not Change at all
• Particles will solidify 

When heat is added to a sample of gas sealed in a container, which of the following will most likely happen?

• The temperature of gas will increase because the gas molecules will move much more slowly.
• The temperature of gas will decrease because the gas molecules will move faster
• The temperature of gas will increase because the gas molecules will move faster. 
• Temperature of gas will decrease because the gas molecules will stop moving

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

You forgot to bring your basketball inside after playing a game with your friends. When the sun went down, the temperature dropped and it got cold outside. What do you think happened to the volume of the ball?

• It increased
• It decreased
• It stayed the same

Tags

NGSS.MS-PS1-4

At constant temperature, when the volume of a gas is decreased, what happens to its pressure?

• It increases

• It decreases

• It will vary

• It remains constant

At constant volume, when the temperature of a gas decreases, the pressure _______.

• decreases

• increases

• does nothing

• explodes

Which of the following explains the change in pressure when volume increases?

• As the volume increases, the particles slow down, causing less collisions and less pressure.

• As the volume increases, the particles speed up, causing more collisions and more pressure.

• As the volume increases, the particles have more space to move and collide less with the walls , causing pressure to decrease.

• As the volume increases, the particles have more space to move and collide less with the walls , causing pressure to increase.

If volume is held constant and temperature increases how does pressure change?

• decrease

• increase

• no change

• implode