- #1

XianForce

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## Homework Statement

In a crude model of a rotating diatomic molecule of chlorine (Cl2), the two Cl atoms are 2.00 10^-10 m apart and rotate about their center of mass with angular speed ω = 3.80 10^12 rad/s. What is the rotational kinetic energy of one molecule of Cl2, which has a molar mass of 70.0 g/mol?

## Homework Equations

1/2 * m * v

^{2}(Kinetic Energy)

v/2 * K

_{B}* T (Internal Energy of a molecule)

## The Attempt at a Solution

I attempted to use the equation for kinetic energy, substituting r * ω for v, but my web assign says that this is wrong. Nothing like this was taught in class and the book does not say much, so I'm at a loss for where to go.