introduction to Boyle's law

1. Boyle’s Law:
An Introduction
JLBC

2. REVIEW:
Solve for 2 mins.
The pressure of a gas is found to
be 0.83 atm. Express this in
mmHg.

3. Solve for 2 mins.
The pressure of a gas is found to be 0.83 atm. Express this
in mmHg.
Solution: 1 atm = 760 mmHg
P = 0.83 atm x 760mmHg
1 atm
P = 630.8 mmHg

4. When we talk bout the volume of
matter, what are we referring to?
What happens when you put a
gas inside a container?

6. What is BOYLE’S LAW?
•Boyle’s law states that the volume V of a sample
of gas changes inversely with the pressure P of
the gas as long as the temperature T of the gas
and the number of moles n of the gas remain
constant.

7. How can you write Boyle’s law as a
formula?
•𝐩 ∝
𝐯
𝟏
P = pressure
•P1V1 = C V = volume
•P2V2 = C C = constant
•P1V1 = P2V2 (at constant T and n)

8. Using Boyle’s Law, explain how
bubbles expand as they rise in
the air.
Application:

9. Boyle’s Law states that the
pressure of a gas is inversely
proportional to its volume.
It can be written as
P1V1=P2V2.
Generalization:

10. Evaluation:
In a ¼ sheet of paper, complete the
following statement: (increase, decrease)
If there is a/an __________ in the pressure
of a gas, there will be a/an ____________ in
its volume. If there is a/an _____________
in the pressure, there will be a/an
_______________ in its volume.

11. Assignment:
Compute for the final pressure.
A sample of hydrogen gas has a
volume of 34 L at a pressure of
750 mmHg. What will be the
volume of the gas if the pressure
is increased to 760 mmHg.