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A gaseous mixture was prepared by taking equal mole of CO and N2. The total pressure of the mixture was found 1 atmosphere, the partial pressure of the nitrogen (N2) in the mixture is:
- 0.5 atm
- 0.8 atm
- 1 atm
- 0.2 atm
Correct answer: 0.5 atm
Solution
In a gaseous mixture, the partial pressure of a gas is proportional to its mole fraction. Since equal moles of CO and N2 are present, their mole fractions are both 0.5. Thus, the partial pressure of N2 is 0.5 × total pressure = 0.5 atm.
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