Chemistry Chapter 18

What is the formula for Boyle's Law?

• P₁V₁=P₂V₂
• P₁V₁/P₂V₂
• P₁V₂=P₂V₁
• P₁/V₁=P₂/V₂

When pressure increases then the volume must...

• increase

• decrease

• stays the same

• increases then decreases

When Volume increases then Pressure must...

• Increase
• Decrease

Which container will have a lower pressure?

• left
• right
• they both have the same pressure
• I don't know

For the problem below, what is the value for the final pressure?

A gas with a volume of 4.0 L at 90.0 kPa expands until the pressure drops to 20.0 kPa. What is its new volume if the temperature doesn’t change?

• 4.0 L

• 20.0 kPa

• 90.0 kPa

• 18.0 L

Which two variables must be held constant for Boyle’s Law to apply?

• pressure & volume
• volume & temperature
• temperature & moles (amount of gas)
• volume & moles (amount of gas)

LeGarrette Blount decides to go scuba diving while on vacation in Mexico. As he swims deeper into the ocean, the pressure pushing on him increases. Based on the relationship in Boyle’s law, what would happen to the volume of a LeGarrette’s lungs with this increase in pressure?

• volume of the lungs would increase
• volume of the lungs would have no change
• volume of the lungs would double
• volume of the lungs would decrease

The volume of an average NFL player is 2.4 L and the pressure is 101.70 kPa during exhalation. If the pressure during inhalation is 101.01 kPa, what is the volume of the lungs of a NFL player during inhalation?

• 2.38 L
• 2.4 L
• 5.1 L
• 4284 L

What is the formula Charles' Law?

• V = T
• VT = VT
• T₁ / V_{1 =} T₂ / V₂
• V₁ / T₁ = V₂ / T₂

Tom Brady enjoys balloon animals from the carnival. He just received a balloon giraffe that has an initial temperature of 39.0°C and a volume of 1.28 L. If Gronkowski plays a trick on Tom, and puts his balloon giraffe into the freezer, what would be the new volume of the balloon if the temperature drops down to 8.0°C?

• 1.42 L

• 6.85 x 10⁴ L

• 3.78 L

• 1.15 L