Definitions
Pressure on the gas is inversely __________ to volume of the gas
proportional
k is what in the equation PV = k?
A constant
If P1 = 2.0 atm, V1 = 30.0 L, V2 = 6.0 L, what is P2?
10 atm
What happens to the pressure of the tire when you pump it with air?
Pressure increases (why we can feel the tire become tighter)
The ______ of the initial pressure and volume of the gas must be equal to the ______ of the final pressure and volume
product
atm is a unit of what?
Atmospheric pressure
If P1=101.1 kPa, V1=500.7 mL, P2 =202.3 kPa, find V2.
250.2 mL
Lungs expand during inhalation → volume increases. What happens to the pressure?
It decreases
What two things must remain constant for Boyle's Law to be true?
Temperature and quantity of gas
How many kilopascals (kPa) are equal to 1 Pascal (Pa)?
0.001 kPa
2.0 L of carbon dioxide gas is kept at 500 kPa and is compressed to 1.0 L. What is the new pressure?
1.0 x 103 kPa
Why did the marshmallow work in the Boyle's law experiment, even though it is a solid?
The marshmallow has trapped air bubbles in it, which is a gas. The gas in the marshmallow caused it to expand, when pressure was decreased and vice versa
What could cause Boyle's law to fail?
High pressure
101325
A gas at 1.2 atm and 3.0 L, expands to 6.0 L. What is the new pressure in Pascals (Pa)?
6.1 x 104 Pa
Why is it hard to squeeze a closed soda can?
The gas inside is packed in a small, fixed space with lots of pressure. To increase pressure, you’d have to decrease volume, but the can is hard so it prevents that.