The air inside a beach ball is at a temperature of 25°C and a pressure of 1.0 atm. If the ball contains 0.85 mol of air, what is its volume?

Question

Quizplus · Accepted Answer

Using the ideal gas law, $PV = nRT$, where $P = 1.0 \, \text{atm}$, $n = 0.85 \, \text{mol}$, $R = 0.0821 \, \text{L atm mol}^{-1} \text{K}^{-1}$, and $T = 25°C = 298K$, the volume $V$ can be calculated as $V = \frac{nRT}{P} = \frac{0.85 \times 0.0821 \times 298}{1.0} \approx 21 \, \text{L}$.

The Air Inside a Beach Ball Is at a Temperature