Moderate
A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO2, 0.05 gm mole of oxygen and 0.80 gm mole of N2. What is its molecular weight ?
Correct answer: C. 30.6
- A. 28.6
- B. 30.0
- C. 30.6
- D. 32.6
Explanation
The mixture molecular weight is the mole-fraction-weighted average: 0.15(44) + 0.05(32) + 0.80(28) = 30.6 g/mol. The gas composition is already given on a total mole basis.
Written and checked by Zahid Hussain, MS Computer ScienceLast updated
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