Relationship between Kinetic Energy and Molecular Weight

[mistero]

---

Members don't see this ad.

Does anyone know a formula that shows a relationship between kinetic energy and molecular weight?

 

[Contach]

molecular weight?
assume you have 1 mol of something so you can get the weight of 1 mol

then the equation is:

KE = 1/2 * m* v^2

there's a simplified formula for velocity and weight, it can be derived easily, but here it is anyways:

V(1)/V(2) = Root[M(2)/(M1)]

 

[Chesnok]

there's that formula in the kaplan blue book relating both or smth else similar

 

[Contach]

there's that formula in the kaplan blue book relating both or smth else similar

that helps.

 

[211183]

that helps.

Looked it up...
KE = 1/2 mv^2 = 3/2 kT

dont know if its what u wanted but thats all i got

 

[151AND8TH]

there's a simplified formula for velocity and weight, it can be derived easily, but here it is anyways:

V(1)/V(2) = Root[M(2)/(M1)]

indeed -- and thats the Graham's Law of effusion

 

[wifi08]

yes of course there is a formula for it.
kinetic energy= temperature
P(MW)=D*R*T