Gas Laws Quiz

The __________ of a gas can be described as the constant collision of gas molecules against the inside walls of a container.

• temperature

• pressure

• diffusion

• density

One mole of any gas at STP will have a volume of ____.

• 22.4 L

• 273 ml

• 8.31 ml

• 6.02 L

A student was trying to solve the following problem: A sample of butane gas (C₄H₁₀) is stored in a 7.5 L container. At 22.4°C the pressure in the tank is measured at 3.7 atm. How many moles of butane are in the container? They had this reference information available:

• 0.082

• 8.314

• 1.987

• 62.4

When the pressure of a chemical system is decreased, the system will shift towards the side that

• has a lower number of gas molecules.

• has a greater number of gas molecules.

Convert the pressure 0.75 atm to mm Hg.

• 430 mm Hg

• 760 mm Hg

• 101.325 mm Hg

• 570 mm Hg

If the pressure on the equilibrium system below increases what will happen? [ 2CO(g) + O2(g) rightleftharpoons 2CO2(g) ]

• The system will not change.

• The system will shift to the right towards the products.

• The system will shift to the left towards the reactants.

When temperature scale should always be used when solving gas law problems?

• Kelvin

• Fahrenheit

• Kilopascal

• Celsius

Standard temperature is exactly

• 0ºC.

• 273ºC.

• 100ºC.

• 0 K.

If more gas particles are added to a container, which of the following will most likely occur?

• Volume will decrease.

• The gas constant will increase proportionally.

• Pressure will increase.

Which statement about the two beakers below is true?

• Beaker #2 has a smaller volume and therefore a greater pressure.

• Beaker #2 has a greater volume and therefore a greater pressure.

• Beaker #1 has a greater volume and therefore a greater pressure.

• Beaker #1 has a smaller volume and therefore a greater pressure.