Question

Among the following which gas that
can diffuse slowly is
A)NH3
B)CH4
C)O2
D)H2

Answer 1

Answer:

H2

Explanation:

Answer 2

Answer:

Option (c)

Explanation:

As per Graham’s law of diffusion, rate of diffusion of gas is inversely proportional to square root of its molecular mass.

Rate, r∝1M√ ; Here ‘M’ is molecular mass of a gas.

For NH3 gas,  M.W = 17 ;For CH4 gas, M.W =16

For O2 gas, M.W = 32 ; For H2 gas , M.W = 2

From the above formula it is known that the gas which has least molar mass that can diffuse easily than other gases and the gas which has high molar mass that can diffuse slowly.

Therefore, among given all gases hydrogen gas, H2 diffuse more easily and O2 gas diffuses slowly.