Coal is heated in absence of air for 7 minutes at a temperature of about ______________ °C, during its volatile matter determination for proximate analysis?
Correct answer: C. 950
- A. 550
- B. 750
- C. 950
- D. 1150
Explanation
In proximate analysis, volatile matter is measured by heating the coal without air at about 950°C for seven minutes. The fixed carbon is then obtained by difference after accounting for moisture and ash.
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