4 Gaseous State

Question 1

Assumptions of the Kinetic Theory

Answer 1

1. Gas particles are in constant random motion
2. Gas particles have negligible volume/size compared to the volume of container
3. Gas particles exert negligible intermolecular forces on one another
4. Collisions between gas particles are perfectly elastic
5. Average KE directly proportional to absolute temperature (in K)

Question 2

1 atm

Answer 2

101325 Pa

Question 3

Conversion from Kelvins to Celsius

Answer 3

T (K) = T (°C) + 273

Question 4

Ideal gas equation

Answer 4

pV=nRT

Question 5

Boyle’s Law

Answer 5

Constant temperature, volume of a fixed mass of gas is inversely proportional to its pressure (pV=constant)

Question 6

Charles’ Law

Answer 6

Constant pressure, volume of a fixed mass of gas is directly proportional to its absolute temperature in K (V/T=constant)

Question 7

Avogadro’s Law

Answer 7

Constant temperature and pressure, volume of a gas is directly proportional to the number of moles of gas (V/n=constant)

Question 8

Dalton’s Law of Partial Pressure

Answer 8

Total pressure of a mixture of non-reacting gases equals to the sum of the partial pressures exerted by the constituent gases.

Question 9

Deviation of ideal behaviour

Answer 9

1. High pressure
2. Large electron cloud/polar (stronger imf)
3. Lower temperature