Gas Laws Cheat Sheet - Georgetown ISD
Gas Laws Cheat Sheet
STP is 1 atm and 0(C K = 273 + (C (Change ALL temperatures to Kelvin!!!!)
1 atm = 760 mmHg or 760 torr 1000 mL=1 L
1 atm = 101.3 kPa Molar Volume of a Gas at STP 22.4 L/mol
V1 = initial volume
Boyle’s Law V1P1 = V2P2 V2 = final volume
P1 = initial pressure
P2 = final pressure
Charles’s Law V1 = V2 T1 = initial temperature (in Kelvin)
T1 T2 T2 = final temperature (in Kelvin)
n1= initial moles
Gay-Lussac’s Law P1 = P2 n2 = final moles
T1 T2
Moles and Volume Law V1 = V2
n1 n2
Combined Gas Law V1P1 = V2P2
n1T1 n2T2
Ideal Gas Law PV = nRT P = pressure in atm, kPa, or mmHg (Make sure you pick correct R!)
V = volume in liters
n = number of moles
T = temperature in Kelvin
Ideal Gas Constant = R = 0.0821 L • atm = 8.31 L • kPa = 62.4 L • mmHg
mol • K mol • K mol • K
(Pressure)(volume) = (moles)(ideal gas constant)(temperature)
Daltons Law PT = P1 + P2 + P3 + ……. PT = total pressure
P# = the partial pressures of the individual gases
Total Pressure of a Gas = (Sum of the partial pressures of the component gases)
Daltons Law applied to Gases Collected by Water Displacement
Patm or PT = Pgas + PH2O Patm or PT = barometric pressure or total pressure
Pgas = pressure of the gas collected
PH2O = vapor pressure of water at specific temperature (table below also on page 899 in textbook)
Water – Vapor Pressure
|Temperature (ºC) |Pressure (mmHg) |Temperature (ºC) |Pressure (mmHg) |Temperature (ºC) |Pressure (mmHg) |Temperature (ºC) |Pressure (mmHg) |
|0.0 |4.6 |21.0 |18.6 |27.0 |26.7 |50.0 |92.5 |
|5.0 |6.5 |22.0 |19.8 |28.0 |28.3 |60.0 |149.4 |
|10.0 |9.2 |23.0 |21.1 |29.0 |30.0 |70.0 |233.7 |
|15.0 |12.8 |24.0 |22.4 |30.0 |31.8 |80.0 |355.1 |
|18.0 |15.5 |25.0 |23.8 |35.0 |42.2 |90.0 |525.8 |
|20.0 |17.5 |26.0 |25.2 |40.0 |55.3 |100.0 |760.0 |
Graham’s Law
Rate of diffusion/effusion of A = √(MB / MA) M = molar mass of that compound
Rate of diffusion/effusion of B Gas A is the lighter, faster gas
Rate of diffusion/effusion is the same as the velocity (or speed) of the gas.
After the rates of diffusion/effusion for two gases are determined, the gas with the lower molar mass will be the one diffusing/effusing faster.
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- cheat sheet for word brain game
- macro cheat sheet pdf
- logarithm cheat sheet pdf
- excel formula cheat sheet pdf
- excel formulas cheat sheet pdf
- excel cheat sheet 2016 pdf
- vba programming cheat sheet pdf
- macro cheat sheet food
- free excel cheat sheet download
- onenote cheat sheet pdf
- punctuation rules cheat sheet pdf
- excel formula cheat sheet printable