Gas Laws

A 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?

• 5 L

• 20 L

• 10 L

• 1 L

At STP, the temperature is _______ and the pressure is _______.

• 25°C, 1 atm

• 0°C, 1 atm

• 28°C, 2 atm

• 45°C, 1.5 atm

If a gas occupies a volume of 5.0 L at a pressure of 765 mmHg, what volume will the gas occupy at a pressure of 780 mmHg?

• 4.9 L

• 6.5 L

• 15 L

• 22 L

When the temperature of a gas increases, the particles _____________ and pressure _____________.

• Speed up, decreases

• Speed up, increases

• Slow down, decreases

• Slow down, increases

In Boyle's Law, the pressure and volume of a gas have a ________ relationship.

• Direct

• Inverse

A gas fills a balloon at a temperature of 22.0^oC and 1.00 atm of pressure. What will the pressure of the balloon be if the gas is heated to 29.0^oC?

• 0.957 atm

• 3.75 atm

• 1.02 atm

• 2.23 atm

In order to convert to Kelvin, add ______ to the Celsius measurement.

• 372

• 273

• 237

• 732

What is 155°C in Kelvin?

• 223

• 428

• 550

• 196

A .22 L sample of helium gas is in a cylinder at 105 kPa and 275 K. The piston is pushed in until the sample has a new temperature of 310 K and new pressure of 150 kPa. What is the new volume of the gas?

• 0.17 L

• 1.6 L

• 0.95 L

• 3.4 L

If a balloon is cooled, what will happen to its volume?

• It will increase

• It will decrease

• It will not change