Combined Gas Law

What is 50⁰C in Kelvin?

• 223

• 323

• 100

• 50

If you increase the pressure of a constant volume of gas, what will happen to the temperature?

• Increase
• Decrease
• Stay the same
• It will Blow Up

What does Boyle's law relate to?

• Temperature and Volume
• Volume and Pressure
• Temperature and Pressure

In Charles' Law, volume and temperature are _________ proportional.

• Directly

• Inversely

What is the volume of 1 mole of gas at Standard Temperature and Pressure (STP)?

• 22.4 L

• 2.4 L

• .24 L

• .024 L

With pressure, volume, and temperature being known values, the ideal gas law can be used to —

• calculate the kinetic energy

• calculate the chemical formula

• calculate the number of moles

• calculate the density

In an experiment with the apparatus shown, the plunger is used to compress helium gas to different volumes. The corresponding volume and pressures (arbitrary units) are measured and displayed in the table below. Which statement best characterizes the data in the table above?

• The volume and pressure values are randomly related

• As the pressure increases, the volume also increases.

• As the volume decreases, the pressure increases.

• The volume seems to jump around, going up and then down.

Which of the following is NOT a unit of pressure?

• Torr

• mL

• mm Hg

• kPa

Indicate what the missing words are in the following statement of Charles’ law: At constant pressure, the volume of a gas sample is _______ proportional to its _______ temperature.

• inversely; Kelvin
• directly; Celsius 
• inversely; Celsius
• directly; Kelvin 

If temperature of any gas is increased its volume _______ (assuming pressure stays the same).

• increases

• decreases

• remains the same

• none of the above