- #1

Kmol6

- 15

- 1

## Homework Statement

A 1.3m×1.3m×1.3m cube of nitrogen gas is at 20∘C and 1.5 atm. Estimate the number of molecules in the cube with a speed between 700 m/s and 1000 m/s.

## Homework Equations

P= (1/3) (N/V) (Mv

^{2}

_{rms})

## The Attempt at a Solution

20

^{oc}= 293 K

1.5 atm = 151950 Pa

Solving for N

N= 3PV/(mv

^{2}

_{rms})

N= 3(151950)(2.197) / (28 x 1220

^{2})

N= 0.024 Molecules ?

This doesn't seem right?