Engineering Board Exam Reviewer · Environmental Engineering · hard
How much CO2 is produced by completely burning 1 tonne of coal that is 75% carbon by mass? (C = 12, CO2 = 44)
- 0.75 tonnes
- 3.67 tonnes
- 0.205 tonnes
- 2.75 tonnes
Answer
D. 2.75 tonnes
Solution
CO2 = 0.75 × (44/12) = 2.75 tonnes per tonne of coal.
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