9th class

2. BOYLE’S
LAW

3. ROBERT
BOYLE
Robert Boyle was natural
philosopher,chemist,physicist and inventor.He is
famous for “Boyles Law” .

4. INTRODUCTION
•In 1662 robert studied the
relationship between the
volume and pressure of a
gas at constant temperature

5. DEFINITION
• The product of Pressure and volume of a fixed
mass of a gas is constant at a constant
temperature.
• FORMULA:-
• Volume <
1
𝑃𝑟𝑒𝑠𝑠𝑢𝑟𝑒
V=
𝐾
𝑃𝑟𝑒𝑠𝑠𝑢𝑟𝑒
or VP =K

6. Here “k” is proportionality constant the value of
“k” is same for the same amount of given gas
P1V1 = K Then P2V2=K
WHERE;-
P1= Initial pressure
P2 = final pressure
V1= Initial Volume
V2 =final volume

7. EPERIMENTATION VERIFICATION OFBOYLE’S
LAW
 Let us take some mass of a gas in cylinder having a moveable piston and observe the effect of
increase of pressure on it’s volumewhen the pressure of 2atm pressure is applied.the volume
of gas reads a 1dm3.when pressure is increased to 4atm. The
volume of gas reducse to 0.5 dm3.when we
increased it at three times on 6atm it will be
0.33dm3 . And
when we increase it into
8atm its volume will be
0.25dm 3

8. When a calculate the product of
volume and pressure for this
experiment. The product of all these
experiment is constant at 2atm dm3.It
proves the “Boyle’s law”

9. PRESENTED BY
Shaheer Rasool
Hassan Ali
Hassan Nadeem
Musab Hussain
Abdul Rehman