U1.5: Ideal Gases Flashcards
1
Q
What are the assumptions of the ideal gas model
A
- There are negligible intermolecular forces of attraction
- There’s negligible volume of gas relative to the container
- There are perfectly elastic conditions
2
Q
What are the conditions of ideality in terms of gas models
A
- Pressure is low as particles are further apart hence. there are weaker intermolecular forces of attraction therefore, making the gas ideal
3
Q
What are the 5 gas laws
A
- Pressure is inversely proportional to volume
- Pressure is directly proportional to Temperature in Kelvin
- As the # of molecules increases, pressure increases
- As the # of molecules increases, volume increases
(same goes for if the # of moles increases as if # of molecules increases)
4
Q
What makes a gas less ideal
A
- Pressure is high as particles are closer together hence, there are stronger intermolecular forces of attraction and they are at lower temperatures therefore, making a gas less ideal
5
Q
Equation linking pressure and volume
A
P1V1=P2V2
6
Q
Equation linking volume and temperature
A
V1/T1=V1/T1
7
Q
Equation linking pressure and temperature
A
P1/T1=P2/T2
8
Q
What is boyle’s law
A
PV = k
9
Q
What is gay-lussac’s law
A
P / T = k
10
Q
What is the ideal gas equation and state the SI units too
A
PV = nRT
- pressure: N/m^3 or Pa
- volume: m^3
- n: mol
- temperature: Kelvin
- R: gas constant 8.31JK^-1 mol
11
Q
What is the combined gas law
A
- P1V1 / T1 = P2V2 / T2
12
Q
cm^3 to m^3
A
x10^-6
13
Q
dm^3 to m^3
A
divide by 1000
