Study Buddy: Energy and States of Matter (STATES)
Terms
Description
Symbol
Unit
Compressibility
Pressure
Volume
Temperature
Number of Particles
Energy
Work
Kinetic Molecular
Theory (KMT)
Ideal Gas
Representations:
Solid
Liquid
Gas
Particle Model
Draw gas particles in the balloon that
show the KMT properties. In a few
words, tell how each is shown.
a. particles do not attract
or repel
Attraction
between particles
Space between
particles
b. particles are spread out
c. particles are constantly
moving
Shape
Volume
d. particles have elastic collisions
Compressibility
Why are gases more easily compressed than solids or liquids?
Identify the particle diagrams below as showing kinetic or
potential energy. Then, explain which in each pair is showing
higher energy and why.
A.
B.
On each SCUBA tank, draw and explain
these terms and what particles would
have to do to increase each variable:
1. temperature
2. pressure
8/30/18
SCIE_CHEM_STATES_MAT_STUDYBUDDYTE_AL
copyright © CFISD 2018
1
Gas Pressure=
, Volume=
, and number of particles=
Look at each gas situation below. Then, circle the diagram showing the correct change.
Before
The new volume will be
or
The new pressure will be
or
After
Before
After
The new pressure will be
Before
After
Gas Laws
*Make sure to use your STAAR Chemistry Reference Materials*
For each pair of variables, draw a line representing
their relationship and label as direct or inverse.
P
P
V
or
P
n
V
T
V
T
n
Complete the table below, assuming that volume
and temperature stay constant.
Number of Particles (n)
Pressure (atm)
50
5 atm
10 atm
200
30 atm
1. The volume of a gas is 20.0L and the
pressure is 40 atm at constant temperature. If
the pressure is increased to 80 atm, then
volume:
a. increases
b. decreases
c. remains the same
2. Each of these flasks contains the same
number of particles. In which container is the
pressure highest assuming temperature is
constant?
Write a statement summarizing the trend shown
in the table.
8/30/18
SCIE_CHEM_STATES_MAT_STUDYBUDDYTE_AL
copyright © CFISD 2018
2