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itryphysics

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## Homework Statement

A gas consisting of 15,200 molecules, each of mass 2.00×10^−26 kg , has the following distribution of speeds, which crudely mimics the Maxwell distribution:

Number of Molecules

1600

4100

4700

3100

1300

400

Speed

210

420

630

840

1050

1260

Determine V

_{rms}for this distribution of speeds.

Given your value for V

_{rms}, what (effective) temperature would you assign to this gas?

## Homework Equations

V

_{rms}= square root {Average V^2} or square root {3kT/m}

## The Attempt at a Solution

So I squared all the values and then divided by the total number to obrain (Average velocity^2) and then took the square root ...the attempt failed..many thanks to anyone who helps!