An ozone measurement in a ultraviolet paint curing facility is 12.2 PPM. The air pressure is 752.1 mm Hg. What is the partial pressure of ozone in the facility?

Question

Quizplus · Accepted Answer

The partial pressure of a gas can be calculated using the formula: $P_{\text{gas}} = X_{\text{gas}} \times P_{\text{total}}$, where $X_{\text{gas}}$ is the mole fraction of the gas and $P_{\text{total}}$ is the total pressure. Given that the ozone concentration is 12.2 PPM (parts per million), this translates to a mole fraction of $12.2 \times 10^{-6}$ (since 1 PPM = $1 \times 10^{-6}$ by definition). The total pressure is given as 752.1 mm Hg. Therefore, the partial pressure of ozone is $12.2 \times 10^{-6} \times 752.1$ mm Hg, which simplifies to approximately $9.2 \times 10^{-3}$ mm Hg.

An Ozone Measurement in a Ultraviolet Paint Curing Facility Is