01/23: Pressure + Gas Law Flashcards
what is a barometer
it is an instrument that reads pressure
how do barometers work
an upside down tube is pressed into a bowl of liquid, the liquid is then suspended up into the tube due to the pressure from the atmosphere pushing on the liquid. The gravity is also pulling the liquid down, so the pressure can be found by relating this balance to the height of the suspended liquid above the liquid in the bowl
what does boyle’s law state
it states that at a constant temperature, the volume is inversely related to pressure
as volume goes up, pressure goes down
as volume goes down, pressure goes up
(P1V1=P2V2)
what does Charle’s law state
it states that at a constant pressure, the volume is proportional to the temperature
as temperature goes up, the volume goes up
as the temperature goes down, the volume goes down
(V1/T1=V2/T2)
What is the combined gas law
P1V1/T1=P2V2/T2
What is avogadro’s law
avogadro’s law states that the volume is proportional to the # of moles at a constant temperature and pressure
