Question

Chemistry help please

Order the relative rate of diffusion of the following gases from slowest to fastest, 1st being slowest, 6th being fastest.

Cl2
F2
He
Kr
N2
O2

Answer 1

1: Kr.

2: Cl₂.

3: F₂.

4: O₂.

5: N₂.

6: He.

Step-by-step explanation:

Answer 2

Answer is:

1: Kr.

2: Cl₂.

3: F₂.

4: O₂.

5: N₂.

6: He.

The lighter (smaller) particles move more quickly than heavier (larger) ones at the same temperature.

Calculate molar masses of the compounds:

M(Cl₂) = 70.9 g/mol; molar mass of chlorine gas.

M(F₂) = 38 g/mol, molar mass of fluorine gas.

M(He) = 4.002 g/mol; molar mass of helium.

M(Kr) = 83.8 g/mol; molar mass of krypton.

M(N₂) = 28.01 g/mol; molar mass of nitrogen gas.

M(O₂) = 32 g/mol; molar mass of oxygen gas.