During its calorific value determination by bomb calorimeter, coal is combusted by _________________?
Correct answer: B. Oxygen
- A. Air
- B. Oxygen
- C. Oxygen enriched air
- D. None of these
Explanation
A bomb calorimeter burns the coal sample in a sealed vessel filled with high-pressure oxygen, ensuring complete combustion. Ordinary air would not provide the same controlled excess of oxygen.
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