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

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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)

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3
Q

0 degrees C in Kelvin

A

273.15

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4
Q

When do gases deviate

A

High pressure
Low temperature
Permenantly polarised

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5
Q

Which gases are the most ideal

A

Low molecular mass
Weakest intermolecular forces

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