An excimer laser contains 0.40 mole Ar and 0.60 mole F₂. The total pressure inside the laser cavity is 1.10 atm. What is the partial pressure of Ar inside the laser?

Question

Quizplus · Accepted Answer

The partial pressure of Ar can be calculated using Dalton's Law of Partial Pressures, which states that the total pressure of a gas mixture is equal to the sum of the partial pressures of each individual gas. The partial pressure of a gas in a mixture is proportional to its mole fraction. For Ar, the mole fraction is 0.40 / (0.40 + 0.60) = 0.40. Therefore, the partial pressure of Ar is 0.40 * 1.10 atm = 0.44 atm.

An Excimer Laser Contains 0