The mole concept Flashcards
1
Q
Mole
A
A mole is a number of elementary entities in a given substance. One mole is based on the number of atoms in 12g of C-12
2
Q
Ideal gas law
A
PV=nRT
1. Directly proportionate from LHS to RHS. Inversely proportionate from only one side.
2. P is in Pascal Pa
3. Volume is in m^3
4. n is in mol
5. R is the universal gas constant 8.314 J K–1 mol-1
6. T is the absolute temperature in K (add 273.15 to C)
3
Q
0 degrees C in Kelvin
A
273.15
4
Q
When do gases deviate
A
High pressure
Low temperature
Permenantly polarised
5
Q
Which gases are the most ideal
A
Low molecular mass
Weakest intermolecular forces
