A gas mixture in a sealed container has a total pressure of ...

Question

A gas mixture in a sealed container has a total pressure of 1500 kPa. If the partial pressures of nitrogen (N₂) and oxygen (O₂) in the mixture are 600 kPa and 400 kPa, respectively, and the partial pressure of carbon dioxide (CO₂) is 200 kPa, what is the partial pressure of the fourth gas, helium (He), in the mixture? The partial pressure of helium (He) is _______ kPa.

Question Analysis
This question evaluates the student's ability to apply Dalton’s Law of Partial Pressures to find the partial pressure of a specific gas in a mixture with multiple components.

Key Concept Explanation
Dalton’s Law of Partial Pressures states that the total pressure of a gas mixture is the sum of the partial pressures of each component.

Step-by-step Solution
1. Identify the given values: Ptotal = 1500 kPa, PN₂ = 600 kPa, PO₂ = 400 kPa, PCO₂ = 200 kPa.
2. Use the formula for total pressure: Ptotal = PN₂ + PO₂ + PCO₂ + PHe.
3. Substitute the known values: 1500 k...

Chemistry

Question

Answer & Analysis

Analysis

Want More Practice Questions?