Chemistry chapter 3 Flashcards
Gases assume the ______ and ______ of their containers
Volume and shape
Gases are the least compressible state of matter
✅ or ❌
❌
Most compressible
Gases are the most __________ state of _______
Compressible
Matter
Gases have much lower ______ than liquids and solids
Densities
Gases will mix _______ and _______ when confined to the same _________
Evenly
Completely
Container
Gases will only mix even and completely when confined to different containers
✅ or ❌
❌
They mix evenly when confined to the same container
1 atm =________ Pa
101, 325
1 atm = _______ Torr
760
1 atm = _______ mmHG
760
The SI unit of pressure is _____
Pascal (Pa)
The standard atmosphere pressure is _______
1 atm
Standard atmospheric pressure (1 atm) is equal to the ________ that supports a ___________ at exactly _______ or (_______) high at 0 degrees Celsius at sea level
Pressure
A column of mercury
760 mmHg
(76 cm)
Focus:
0 degrees Celsius at sea level
Atmospheric pressure is the _______ of ______ of _________ above it
Result - the weight- the column of air
Atmospheric pressure can change, it is not always the same depending on
__________, __________, __________
Location
T
Weather conditions
Atmospheric pressure acts on all directions (not downward only)
✅ or ❌
✅
Manometers are used to measure __________________
Gas pressures
Used to measure gas pressure
_____________
Manometers
Manometers
(a closed tube)
The height of the _________ in the tube is equal to _____________
Mercury
The pressure of the gas sample
Manometer
(Open tube)
The height of the mercury in the tube is equal to the ___________ between______ and ________
Pressure difference
Gas and atmosphere
