Question

The average kinetic energy of uf6(g) is 4.98 kj/mol at some temperature. what is the average kinetic energy of sf6(g) at that same temperature?

Answer 1

Answer:

The average kinetic energy of SF₆(g) is 4.98 kj/mol.

Explanation:

Given that,

Kinetic energy  of UF₆(g)=4.98\ kj/mol

We need to calculate the average kinetic energy of SF₆(g)

Using formula of average kinetic energy

$E_{avg}=\dfrac{3}{2}kT$

$E_{avg}=\dfrac{3}{2}\dfrac{RT}{N_{A}}$

Where, k = Boltzmann constant

$N_{A}$ =Avogadro number

R =gas constant

Here, average kinetic energy depends only on temperature not on special molar mass

So, The SF₆(g) average kinetic energy is same as UF₆(g

Hence, The average kinetic energy of SF₆(g) is 4.98 kj/mol.

Answer 2

4.98 kJ/mol would be the answer I believe :) hope this helped