Order the following in increasing rate of effusion: F₂,Cl₂,NO,NO₂,CH₄ A)Cl₂

Question

Order the following in increasing rate of effusion: F₂,Cl₂,NO,NO₂,CH₄ A)Cl₂ < NO₂ < F₂ < NO < CH₄ B)Cl₂ < F₂ < NO₂ < CH₄ < NO C)CH₄ < NO₂ < NO < F₂ < Cl₂ D)CH₄ < NO < F₂ < NO₂ < Cl₂ E)F₂ < NO < Cl₂< NO₂ < CH₄

Quizplus · Accepted Answer

Effusion rate is inversely proportional to molecular weight. Therefore, the smaller the molecular weight, the higher the effusion rate. The molecules are arranged in increasing order of molecular weight - CH₄ > NO₂ > NO > F₂ > Cl₂. Therefore, the increasing order of effusion rate is - Cl₂ < NO₂ < F₂ < NO < CH₄, and the correct choice is A.

Order the Following in Increasing Rate of Effusion: F2,Cl2,NO,NO2,CH4

Order the Following in Increasing Rate of Effusion: F₂,Cl₂,NO,NO₂,CH₄