If gas A has a molar mass of 32 g/mol and gas B has a mol...
If gas A has a molar mass of 32 g/mol and gas B has a molar mass of 64 g/mol, what is the ratio of their diffusion rates?
2:1
1:2
1:1
1:4
Correct answer is A
According to Graham's law of diffusion, the ratio of the diffusion rates of two gases is the inverse of the square root of the ratio of their molar masses. Therefore:
Rate of A / Rate of B = √(Molar mass of B / Molar mass of A)
Rate of A / Rate of B = √(64 g/mol / 32 g/mol) = √2 = 1.41
So, the ratio of their diffusion rates is approximately 2:1.
Which of the following is a general method of preparing acids? ...
Chlorine displaces bromine from aqueous potassium bromide because ...
In the reaction E+F ↔ G+H, the backward reaction is favoured if the concentration of ...
What is the change in the oxidation number of phosphorus in the following reaction? 4P(s) + 5O2(a...
The process or act of extracting a metal from its ore and refining it is called? ...
The bleaching action of chlorine gas is effective due to the presence of ...
The brown fumes given off when trioxonitrate (V) acid is heated consist of ? ...