Calculate the ratio of effusion rates of cl2 to o2

Hey There!:

Molar mass O2 => 32.0 g/mol

Molar mass Cl2 => 71.0 g/mol

effusion rate α  1 / (√ molar mass )

E Cl2 / E O2 = √ molar mass O2 / √ molar mass Cl2

E Cl2 / E O2 =   ( √ 32.0 ) /  ( √ 71.0 )

=> 0.671

Hope that helps!

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )