Gas Laws Practice ASYNCH

Multiple Choice

IF we are using Boyles' law and our Pressure goes UP, what must our volume do?

• Go UP

• Go DOWN

• Stay the same

• Wrong law.

Multiple Choice

A gas that has a pressure of 2 atm and a volume of 10 L.  What would be the new volume if the pressure was changed to 1 atm?

• P1/T1 = P2/T2

• P1V1 = P2V2

• V1/n1 = V2/n2

• PV = nRT

Multiple Choice

1. Chlorine gas occupies a volume of 1.2 liters at 720 torr pressure. What volume will it occupy at 1 atm pressure?

• 42 L

• 1 L

• 8 L

• 6 L

Multiple Choice

when working with any gas law, the temperature should always be converted _______

• from Celsius to atmospheres

• from Kelvin to atmospheres

• from Celsius to Kelvin

• from atmospheres to Kelvin

Multiple Choice

When the temperature of a gas decreases (with pressure and amount held constant), does the volume increase or decrease?

• Unaltered

• Remains constant

• Increase

• Decrease

Multiple Choice

There are 65 liters of helium in a balloon at 35 K. If the temperature of the balloon is increased to 40 K, what will the new volume of the balloon be?

• 40 L

• 70 L

• 74.3 L

• 75.9 L

Multiple Choice

What is the formula Charles' Law?

• V = T

• VT = VT

• T₁ / V_{1 =} T₂ / V₂

• V₁ / T₁ = V₂ / T₂

Multiple Choice

Temperature and pressure are ____________ proportional.

• directly

• inversly

• synergistically

Multiple Choice

The gas in the container is at a pressure of 3.00 atm at 298 K.  What would be the pressure in the container at 325 K?

• P1/T1 = P2/T2

• P1V1 = P2V2

• V1/T1 = V2/T2

• PV = nRT

Multiple Choice

Dalton's law equation is used to find what?

• the density of a pure gas

• the total pressure of a pure gas

• the total pressure of a gas mixture

• the volume of a gas mixture

Multiple Choice

What is the total pressure of the heliox gas in the diagram?

• 300 kPa

• 100 kPa

• 400 kPa

• 500 kPa

Multiple Choice

Which part of the ideal gas formula represent the ideal gas constant?

Formula: PV = nRT

• P

• V

• n

• R

• T

Multiple Choice

what determines the value of R that you should use?

• the units of the volume

• the units of the moles

• the units of the pressure

• the units of the temperature