A mixture contains 0.5 mol He, 0.09 mol CO2, 0.75 mol O2 and 1.5 mol At. Which gas has the highest partial pressure ?
1 answer:
Answer:
Explanation:
The <em>partial pressure</em> of a gas in a mixture is equal to the mole fraction of the gas multipplied by the total pressure.
The mole fraction of a component in a mixture is equal to the number of moles of the component divided by the total number of moles in the mixture.
In the mixture given there are:
- 0.5 mol He,
- 0.09 mol CO₂,
- 0.75 mol O₂, and
- 1.5 mol At.
Hence, the gas with greatest number of moles, and, consequetly, greatest mole fraction and<em> highest partial pressure</em> is<em> At</em>.
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