Answered

Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Get immediate answers to your questions from a wide network of experienced professionals on our Q&A platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Calculate the root mean square velocity and kinetic energy of F2, Cl2 and Br2 at 298 K. Rank these three halogens with respect to their rate of effusion.

Sagot :

onyebuchinnaji

The ranking of the three halogens with respect to their rate of effusion:

Fluorine (F₂) > Chlorine (Cl₂) > Bromine (Br₂)

The given parameters;

  • fluorine gas, F₂
  • chlorine gas, Cl₂
  • Bromine, Br₂

The molecular mass of the three halogens is calculated as follows;

[tex]F_2 = 2(19) = 38 \ g/mol = 38 \times 10^{-3} \ kg/mol\\\\Cl_2 = s(35.5) = 71 \ g/mol = 71 \times 10^{-3} \ kg/mol\\\\Br_2 = 2(80) = 160 \ g/mol = 160 \times 10^{-3} \ kg/mol[/tex]

The speed of three halogens is calculated as follows;

[tex]v = \sqrt{\frac{3RT}{M} } \\\\v_{F_2}= \sqrt{\frac{3 \times 8.314 \times 298}{38 \times 10^{-3} } } \ = 442.26 \ m/s\\\\v_{Cl_2}= \sqrt{\frac{3 \times 8.314 \times 298}{71 \times 10^{-3} } } \ = 323.55 \ m/s\\\\v_{Br_2}= \sqrt{\frac{3 \times 8.314 \times 298}{160 \times 10^{-3} } } \ =215.53 \ m/s[/tex]

The ranking of the three halogens with respect to their rate of effusion:

Fluorine (F₂) > Chlorine (Cl₂) > Bromine (Br₂).

Learn more about rate of effusion of gases here: https://brainly.com/question/13547979

We hope this information was helpful. Feel free to return anytime for more answers to your questions and concerns. We hope this was helpful. Please come back whenever you need more information or answers to your queries. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.