Module 2 Flashcards
what are the type of gases on earth
permanent
variable
what are the permanent gases in atmosphere
nitrogen oxygen argon neon helium krypton hydrogen
what are the variable gases
water vapor
cabin dioxide
methane
ozone
what role does water play in the atmosphere
distribute heat
provide fresh water for pant and animal life
function as a greenhouse gas
what does a greenhouse gases do
trap heat energy within the atmospehere
what are the greenhouse gas
methane
co2
what are the unit of gas pressure:
atmosphere(atm)
pascal(pa)
millimetre of mercury (torr)
miliarpound per square inch(psi)
how does MMgh convert to Torr
1=1
how does mmgh convert to KPA
mmgh/760x101.3=KPA
how does mmgh convert to ATM
mmgh/760=ATM
what did Galileo do:
developed suction pump
determine max heigh water could be raised was 32 ft using air pressure
what did Evangelista Torricelli do
developed the barometer
determined air pressure could support a column of mercury 760mm
what did Blaise pascal do
discovered that air pressure decreases as altitude increases
what did Joseph gay-lussac do
discover the law of combining volume for gases
what did John dalton do
discover law of partial pressure
the total pressure of a mixture of gas = individual pressure of each together
