Question

Calculate the ratio of effusion rates of oxygen (o2) to hydrogen (h2)

Answer 1

The  ratio of  effusion   of   rates of  oxygen  (O2)   to Hydrogen (H2)  is   calculated  as  follows

rate  of  O2/  rate of H2  =  square root  of   molar  mass  of  H2/molar  mass of O2  

=  square  root  =  2 /32  = 0.25

Answer 2

Answer:

0.251

Explanation:

According to the Graham's law, the rate of effusion of a gas (r) is inversely proportional to the square root of its molar mass (M). The ratio of effusion rates of oxygen (O₂) to hydrogen (H₂) is:

$\frac{rO_{2}}{rH_{2}} =\sqrt{\frac{M(H_{2})}{M(O_{2})}} =\sqrt{\frac{2.02g/mol}{32.00g/mol}} =0.251$