Pressure Laws

Suppose you have two gases numbered 1 and 2.

Which equation represents make the most sense to calculate the total pressure exerted by both gases?

• Multiply their pressures :

  P_total = P₁ × P₂

• Divide their pressures :

  P_total = P₁ ÷ P₂

• Add their pressures :

  P_total = P₁ + P₂

• Subtract their pressures :

  P_total = P₁ – P₂

• Average their pressure :

  P_total = (P₁ + P₂)/2

Suppose you have two gases numbered 1 and 2.

The total pressure can be calculated to be the ____ of the pressure of each individual gas.

• sum (+)

• difference (–)

• product (×)

• quotient (÷)

• average

A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. What is the total pressure inside the container?

• 900 atm

• 0.90 atm

• 9.00 atm

• 920 atm

A student inflates a balloon with helium then places it in the freezer. The student should expect

• the balloon's volume to increase

• the balloon's volume to decrease

• the balloon's moles to increase

• the balloon's moles to decrease

Tags

NGSS.MS-PS1-4

Gas Laws involve what three terms?

• Solid Liquid Gas 
• Speed Velocity Acceleration 
• Elements Compounds Mixtures 
• Pressure Temperature Volume 

Temperature describes  the ______________ of particles.

• volume
• mass
• motion
• conductivity

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When the temperature of matter increases the particles...

• speed up and move closer
• speed up and move farther apart
• slow down and move closer together
• slow down and move farther apart

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which container will have a lower pressure?

• left
• right
• they both have the same pressure
• I don't know

What will happen to the size of a balloon if you take it outside in cold temperature?

• Volume will increase

• Volume will decrease

• Volume will not change

Tags

NGSS.MS-PS1-4

When the temperature of matter increases the particles...

• speed up and move closer
• speed up and move farther apart
• slow down and move closer together
• slow down and move farther apart

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4