Gas Laws

What is 50 C in Kelvin?

• 223

• 323

• 100

• 50

As pressure increases, temperature ____.

• Increases
• Decreases
• Stays the same
• Fluctuates

What is the equation for Boyle's Law?

• P₁V₁=P₂V₂
• V₁/T₁=V₂/T₂
• V₁/n₁=V₂/n₂
• P₁/T₁=P₂/T₂

A balloon of helium gas occupies a volume of 1 L at 32°C. What volume will the gas occupy if we put it in a ice bath at a temperature of 0°C, assuming pressure remains constant? HINT: Temperature units MUST be in Kelvin!

• 0 L
• 1.11 L
• 895 mL
• 632 mL

What will happen to the volume of a gas under constant temperature if the pressure increases?

• Increase
• Decrease
• Nothing
• Explosion!

Grahams law refers specifically to

• the rate of diffusion

• the rate of effusion

• the temperature of gases

• the partial and total pressures of gases in a sample.

why would O₂ effuse faster than CO₂ in the same room

• because it has more energy
• because it has a greater molar mass
• because oxygen has a higher temperature
• they will effuse the same because the temperature is fixed

The total pressure of a mixture of oxygen and nitrogen gas is 400.0 kPa. What is the partial pressure of nitrogen if the pressure of oxygen is 150.0 kPa?

• 400.0 kPa

• 550.0 kPa

• 250.0 kPa

• 101.3 kPa

Dalton's law of...

• Partial Pressure
• Thermodynamics
• Ideal Gas
• Physics

The partial pressure of gas X is 340 torr. The partial pressure of gas Y is 264 torr. The partial pressure of gas Z is 100 torr. What is the total pressure exerted by the gases in this system? 

• 76 torr
• 440 torr
• 604 torr
• 704 torr