2. Objective
At the end of this lesson you should be
able to:
Determine the relationship between
pressure and volume
Solve problems involving pressure and
volume
4. Relationship between pressure
and volume
When the volume is decrease, molecules will
have smaller space to move
Molecules collide more often with the wall and
with another molecules
So the rate of collision increase therefore the
pressure are increases too
Some simulation>>..
Some simulation>>’’
5. Boyle’s Law
Boyle’s Law state for constant mass and
temperature,
“Pressure are inversely proportional to its
volume”
6. Boyle’s Law
In mathematical equation:
PV = constant
So we can conclude:
P1V1=P2V2
7. Lets do the graph!!
P inversely to V P directly proportional to
1
_
V
P P
0 0 1
_
V
V
8. Graph!!
Because PV is a constant value we can
get this graph:
PV PV
0 P 0 V