Molecular Composition of Gases Flashcards
1
Q
Gay-Lussac’s Law of Combining Volumes of Gases
A
states that, at constant temperature and pressure, volumes of gaseous reactants and products can be expressed as ratios of small whole numbers
2
Q
Avogadro’s Law
A
states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules
3
Q
standard molar volume of a gas
A
22.4 L
4
Q
ideal gas law
A
mathematical relationship among pressure, volume, temperature, and number of moles of a gas
5
Q
ideal gas law equation
A
PV = nRT
6
Q
ideal gas constant
R
A
- 4 (L × torr) ∕ (mol × K)
- 0821 (L × atm) ∕ (mol × K)
- 314 (L × kPa) ∕ (mol × K)
7
Q
Graham’s Law of Effusion
A
states that the rates of effusion of gases at the same temperature and pressure are inversely proportional to the square roots of their molar masses
8
Q
molar volume
Vm
A
volume occupied by 1mol of substance
