A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be _____________ kgf/cm2 ?
Correct answer: A. 1
- A. 1
- B. 2
- C. 4
- D. 8
Explanation
The mole fraction of nitrogen is 2/(6+2) = 0.25. Dalton’s law then gives its partial pressure as 0.25 × 4 = 1 kgf/cm².
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