The document discusses gas laws, which describe the relationships between pressure, volume, temperature, and the amount of gas. It highlights three primary laws: Boyle’s Law, Charles’ Law, and Avogadro’s Law, along with the Ideal Gas Law that combines these principles. Additionally, it differentiates between ideal gases, which behave theoretically without interactions, and real gases, which exhibit volume and elastic collision characteristics due to intermolecular forces.

1. GAS LAWS
EUGENE JAY M. AQUINO, LPT
INSTRUCTOR I, NATURAL SCIENCE DEPT.
College of Education, Arts, and Sciences
Gordon College

2. Gases are complicated. They’re full of
billions and billions of energetic gas
molecules that can collide and possibly
interact with each other.

3. Created in the early 17th century, the gas
laws have been around to assist scientists in
finding volumes, amount, pressures and
temperature when coming to matters of gas.

4. The gas laws consist of three primary laws:
Charles’ Law, Boyle’s Law and Avogadro’s Law
(all of which will later combine into the
General Gas Equation and Ideal Gas Law).

5. The three fundamental gas laws discover the
relationship of pressure (P), temperature (T),
volume (V) and amount of gas (n).

6. Gases have three characteristic properties: (1)
they are easy to compress, (2) they expand to
fill their containers, and (3) they occupy far
more space than the liquids or solids from which
they form.

7. BOYLE’S LAW
VOLUME of gas
increases
as the PRESSURE
decreases
**INVERSELY PROPORTIONAL

9. CHARLES’ LAW
VOLUME of gas
increases
as the TEMPERATURE
increases
**DIRECTLY PROPORTIONAL

11. AVOGADRO’S LAW
VOLUME of gas
increases
as the AMOUNT OF GAS
increases
**DIRECTLY PROPORTIONAL

13. GAY-LUSSACS’ LAW
PRESSURE of a gas
is directly proportional
to its ABSOLUTE
TEMPERATURE
*assuming constant mass and volume

15. IDEAL GAS LAW
*combination of the three simple gas laws
pressure (P)
Volume (V)
amount of gas (n)
temperature (T)

19. D
i
f
f
erence of
IDEAL GAS
and
REAL GAS

20. Ideal gas, or perfect gas, is the theoretical
substance that helps establish the
relationship of four gas variables, pressure
(P), volume(V), the amount of
gas(n)and temperature(T).
IDEAL GAS

23. It has characters described as follow:
1. The particles in the gas are extremely
small, so the gas does not occupy any
spaces.
IDEAL GAS

24. It has characters described as follow:
2. The ideal gas has constant, random and
straight-line motion.
IDEAL GAS

25. It has characters described as follow:
3. No forces between the particles of the
gas. Particles only collide elastically with
each other and with the walls of container.
IDEAL GAS

26. Real gas, in contrast, has real volume and
the collision of the particles is not elastic,
because there are attractive forces
between particles.
REAL GAS

27. As a result, the volume of real gas is much
larger than of the ideal gas, and the
pressure of real gas is lower than of ideal
gas.
REAL GAS

28. All real gases tend to perform ideal gas
behavior at low pressure and relatively high
temperature.
REAL GAS

30. REAL
GAS
IDEAL
GAS

31. end