Question | Answer |
vapors | the elements (that are usually solid or liquid) that exist in the gaseous state |
What does the volume of gas equal? | volume of gas equals volume of its container |
What happens when gases are mix together | gases form homogenous mixtures with each other regardless of the identities or properties of the component gases |
What are the measured properties of a gas? | temperature, volume, pressure |
Pressure = ? | Force/Area |
Force = ? | mass * acceleration |
gravity exerts an acceleration of ? | 9.8 m/s^2 |
1 Newton =? | kg*m/s^2 |
What is the SI unit of pressure? | Nm^ -2 (called a pascal (Pa) ) |
1 Pa (pascal) = ? | 1 N (newton)/m^2 |
The atmospheric pressure at sea level is about | 100 k Pa |
barometer | measures atmospheric pressure |
atmospheric pressure =? | 1.01325 * 10^5 Pa |
Other units of pressure: | 1atm = 760mmHg = 760torr = 1.01325 * 10^5 Pa = 101.325 kPa |
1 torr = ? | 1 mm Hg |
manometer | (contains mercury) used to measure the pressure of an enclosed gas. |
Gas laws | equations that tells the relationship among P, T, V, and n |
Pressure -Volume Relationship: Boyle's Law | Volume of gas is inversely proportional to the pressure (as pressure decrease, volume increase, and vice versa) |
PV = ? | constant (the value of the constant depends on the T and the amount of gas in the sample) |
Temperature - Volume | (blank) |
0 degree K =? | -273.15 C |
Volume/Temp. =? | constant (value of constant depends on the pressure and amount of gas) |
The Quantity - Volume Relationship: Avogadro's Law | volume of gas is proportional to the # of moles of the gas |
Law of Combining Volumes (discovered by Lussac) | (blank) |
1 mole of any gas (6.02 * 10^23 gas molecules) at atm. pressure and 0 degree C occupies (blank) liter volume | 22.4 |
V = ? | constant * n |