# The air inside a beach ball is at a temp of 25 degrees Celsius, and a pressure of 1.0 atm. If the ball contains .85 mol of air what is the volume?

Jun 4, 2018

Approx. $20 \cdot L$....
We simply solve for $V$ in the Ideal Gas equation...
$V = \frac{n R T}{P} = \frac{0.85 \cdot m o l \times 0.0821 \cdot \frac{L \cdot a t m}{K \cdot m o l} \times 298 \cdot K}{1.0 \cdot a t m}$
=??*L....