Question

Which of the following statements are correct?

• A. Helium diffuses at a rate 8.65 times as much as $CO$ does.
• B. Helium escapes at a rate 2.65 times as fast a $CO$ does
• C. Helium escapes at a rate 4 times as fast a $C{O}_2$ does
• D. Helium escapes at a rate 4 times as fast a $S{O}_2$ does

Answer 1

The correct option is B Helium escapes at a rate 2.65 times as fast a $CO$ does

$\frac{{\gamma }_{He}}{{\gamma }_{CO}}=\sqrt{\frac{M_{CO}}{M_{He}}}=\sqrt{\frac{28}{4}}=\sqrt{7}=2.65\text{Rate of Helium effuses 2.65 times of CO does}$