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WorksheetsIntroduction to Gases
Total questions: 20
Worksheet time: 13mins
The theory that explains the behavior of gases at the molecular level is called
the
kinetic theory
ideal gas theory
boyles law
charles's law
The kinetic theory is based on the assumptions about a theoretical gas called an
fast gas
ideal gas
normal gas
standard gas
Gases deviate from ideal behavior at:
very low temperature
very high temperature
very low pressure
it never deviates
Gases deviate from ideal behavior at:
very high temperatures
very low pressures
very high pressures
it never deviates from ideal behavior
The molecules of an ideal gas display no
sinusoidal behavior to one another
frequency to one another
retraction to one another
attraction or repulsion to one another
Under ordinary conditions, an ideal gas consists chiefly of
areas of condensatoin
block molecules
empty space
mcdonalds
Ideal gas particles travel in _________ lines until they collide with each other or with the walls of their container
perpendicular
zigzag
parallel
straight
The collisions between the molecules of an ideal gas are completely
elastic
inelastic
destroyed
animated
The average kinetic energy of the molecules of an ideal gas is ____________
proportional to the ____________ temperature of the gas.
directly, Kelvin
indirectly, Celsius
indirectly,Fahrenheit
directly, celsius
A gas exerts pressure on the walls of its container because gas molecules____________ with the walls of the container.
dance
collide
supersede
repel
The pressure exerted by a gas depends on what two factors:
the number of vibrations in the container and the revolution of the earth around the sund
the number of collisions that occur and the energy of the collisions with the walls of the container
the air pressure from outside of the container and the air pressure from inside the container
the amount of particles that stand still and the amount of particles that hit the walls of the container
To measure gas pressure an instrument called a _______________ is used.
speedometer
sphygmomanometer
manometer
barometer
The earth’s atmosphere has weight, which creates ____________
atmospheric pressure
ionospheric pressure
maonmetric pressure
water pressure
The instrument used to measure atmospheric pressure is the ____________.
barometer
maonometer
sphygmomanometer
speedometer
Which of the following are units for standard temperature and pressure? (STP)
273 K
0oC
101.3 kPa
760 mmHg
1.0 atm
760 torr
30 oF
550 bars
25 psi
What does STP stand for?
(a)
At 1 atm, the height of the ____________ in a barometer is 760 mmHg
Mercury
Water
Pressure fluid
Blinker Fluid
A block of wood with a weight of 18 Newtons rests on a table top. How much pressure is the block of wood exerting on the surface of the table directly beneath it if it is 3cm long and 2 cm wide? Pressure =Force/Area
6 N/cm2
9 N/cm2
3 N/cm2
18 N/cm2
Why does pressure increase when more air is added to a tire?
There are more gas particles colliding with the wall of the tire
more gas means less air
The collisions between the tire and gas becomes inelastic
The gas caused the tire to rotate
What happens to volume when bubble wrap is squeezed?
It decreases which increases pressure
it increases which decreases pressure
It creates a vacuum
nothing happens to volume
