Gas quiz Flashcards
what do you collisions of molecules resulting
no loss of energy
are there attractive forces between molecules
nope
properties of a gas
The expansion of a molecule is directly related to the temperature, gas is always expand to fill a container, easily compressed come exert pressure, diffuse readily
low-pressure
created by cooling gas molecules, removing gas molecules, increasing elevation, decreases volume
high-pressure
created by heating, adding gas molecules, decreasing elevation, increases volume
pop can demo
low-pressure is created by cooling the water vapor quickly in the beaker of ice water, high pressure on the outside of the can curse the can
candle demo
heating gas molecules but gases are trapped, gases are trapped in there is a moment like what goes in the flask
Armstrong line
Little pressure makes the fluids beat up and Bible, pressure is low so vapor releases
peep demo
vacuum turns on the molecules in the speed up and make the people bigger high-pressure in the peep low-pressure in the container H2O goes out
balloon demo
The air in the balloon increases into the brush pressure inside more than outside the modules expand and speed up inside the balloon, high-pressure in the balloon low-pressure in the container
shaving cream demo
The pressure is lowered inside makes the mall to speed up in the shaving cream expense, low pressure on the inside of the container high-pressure in the shaving cream
Air pressure
Standard air pressure at sea level
standards of air pressure
760 MmhG 760 torr One ATM 14.7 pounds per square inch 0°C or 270° K
pink fountain demo
heating up the steam when flipping strong to the icewater what’s a crate low-pressure
low-pressure inside the balloon high-pressure in the water and phenolphthalein
Melvin the balloon
hi in the container low in the balloon, low-pressure cooling molecules in the container hi in the balloon
egg demo
high pressure pushes the egg inside the container, low-pressure uses gas molecules and flame goes out molecules cool and create low-pressure.egg is blown out of container
Will hydrogen float on air demo
fill a pipe that with air the other pipette with NAO H and aluminum, put them together ignite
benoulls Principle
moving gas molecules create low-pressure
blow dryer demo
Low pressure due to moving air, high pressure pushes on the low pressure area keeping the ping-pong in the pocket
what holds water up demo
when the paper stuck to the test tube the pressures were equal, the paper only stayed with half the test tube filled
what is Bends
A person stays at a depth of 100 feet for a certain amount of time and some of the nitrogen from the compressed air dissolved in the water in the body so if the diver swim to the surface too fast it’s painful
how is Bends prevented
The driver must rise slowly and make stops on the way up
how can Ben be cured
The only cure is to enter a pressurized chamber where the pressure matches that of the deck
oxygen poisoning
breathing 100% oxygen gas
negatives of oxygen poisoning
decreases gas exchange, chest pains
negative effects of nitrogen narcosis
making dangerous decisions, drunk
where did the story of volcano under the city take place
Central Africa
what did the scientist discover about the series of fissures from the volcano
ran directly under the city
magma that reaches Earth surface is called
lava, fastest on earth
what are the three ways that volcano just predict the volcano at
analyzing chemistry of gases and magma, seismology, land deformation
as magma moves to the surface what does it create
earthquakes
carbon dioxide near the crater indicates
magma at greater depths
large amounts of sulfur dioxide option with and how much time
days or weeks
what percent of CO2 will kill you
15
how does water with CO2 compared to water without it
it’s heavier and stays at the bottom
what signs do they see in Goma that indicate interruption may be near
Big flames and a lot of gas, volcanic ash when it rains
what property of carbon dioxide allows the scientist to float the smoke on top of it
density
what shows that magna came deep within the earth
Iron and magnesiump
Kinetic molecular theory
The volume of the molecules are considered to be a negligible compared to volume they occupies a gas
