Gas Law quiz

What are the four variables used to describe gases?

• Pressure, volume, mass, and temperature

• Pressure, volume, density, and temperature

• Pressure, volume, temperature, and amount

• Pressure, mass, temperature, and amount

When gas is added to a container at constant volume, what happens to the pressure?

• The pressure decreases.

• The pressure remains unchanged.

• The pressure increases.

• The relationship between pressure and volume cannot be determined.

What is the relationship between the volume of a gas and the pressure when the temperature is held constant?

• Direct relationship

• Indirect relationship

• No relationship

• Inverse relationship

If the temperature of a gas increases, what happens to the pressure if the volume remains constant?

• The pressure decreases.

• The pressure remains unchanged.

• The pressure increases.

• The relationship between temperature and pressure cannot be determined.

According to Boyle's Law, if a gas has a pressure of 0.410 atm and a volume of 32 L, what would be the pressure when the volume changes to 28L?

• 0.370 atm

• 0.467 atm

• 0.500 atm

• 0.410 atm

Using Charles's Law, what would be the volume of a gas at -150°C if it had a volume of 693 mL at 45°C?

• 623 mL

• 763 mL

• 673 mL

• 713 mL

Use Gay-Lussac's Law: If the pressure in a car tire is 198 kPa at 27 °C, and after a long drive the pressure is 225 kPa, what is the temperature of the air in the tire assuming that the volume is constant?

• A) 30 °C

• B) 60 °C

• C) 75 °C

• D) 303 °C

Use the ideal gas law: What is the pressure of 0.33 mol of nitrogen gas, if its volume is 15.0 L at -25.0°C?

• A) 0.55 atm

• B) 0.80 atm

• C) 1.00 atm

• D) 1.20 atm

Use the ideal gas law: What is the volume of a gas at 50.0°C and 0.80 atm, if there are 0.75 moles of the gas present?

• A) 18.0 L

• B) 22.4 L

• C) 24.5 L

• D) 30.0 L

Use the ideal gas law: How many moles of neon gas are there if 25.0 L of the gas are at 5.0°C with a pressure of 0.89 atm?

• A) 0.50 moles

• B) 0.97 moles

• C) 1.10 moles

• D) 1.50 moles