Gas Laws Practice

According to Boyle's law, at constant temperature, as the pressure of a given sample of gas is increased, the volume will –

• Increase
• Decrease
• Remains the same

A gas of volume V is placed in a balloon.  Determine the new volume of the balloon if the pressure is tripled. The new volume will be ____ what it was originally.  

• 1/3 of
• 1/6 of
• 1/9 of
•  9 times

If a nitrogen gas occupies a volume of 500 ml at a pressure of 0.971atm. Which equation will allow you to calculate the volume the gas will occupy at a pressure of 1.50 atm?  

• P1V1 = P2V2
• PV = nRT
• P1/T1 = P2/T2
• V1/n1 = V2/n2

Absolute zero is

• 0 K

• where there is no molecular movement

• the coldest temperature possible

• all of these

A sample of a gas has a volume of 852 mL at 298 K. Which equation would you use to calculate the temperature of the gas at a volume of 945 mL?

• Pt = P1 + P2 + P3 + ...
• P1V1 = P2V2
• V1/T1 = V2/T2
• P1V1/T1 = P2V2/T2

Boyle's law : When _______ is held constant, the pressure and volume of a gas are ________  proportional

• temperature,  equally
• mass, inversely
• temperature, inversely
• mass, equally

Boyle's law :  The pressure and volume of a gas show a _____ relationship. 

• Inverse 
• Direct 

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

If the pressure exerted by a gas at 298 K in a volume of 0.044 L is 3.81 atm, how many moles of gas are present? What equation would you use to calculate your answer?

• P1/T1 = P2/T2
• PV = nRT
• V1/n1 = V2/n2
• P1V1 = P2V2

The volume occupied by 3 moles of N₂ at 0^oC and 101.3 kPa is ____.  (Use the Ideal Gas Law to solve)

• 67.2 L
• 22.4 L
• 7.47 L
• 134.4 L