A formula giving the gross heating value of coal in terms of the weight fractions of carbon, hydrogen, oxygen and sulphur from the _________(a) ultimate analysis(b) proximate analysis(c) distillation(d) filtrationI had been asked this question during a job interview.I need to ask this question from Dullong’s Formula topic in section Fuel Technologies of Applied Chemistry

A formula giving the gross heating value of coal in terms of the weigh

1.	A formula giving the gross heating value of coal in terms of the weight fractions of carbon, hydrogen, oxygen and sulphur from the _________(a) ultimate analysis(b) proximate analysis(c) distillation(d) filtrationI had been asked this question during a job interview.I need to ask this question from Dullong’s Formula topic in section Fuel Technologies of Applied Chemistry
Answer» CORRECT answer is (a) ULTIMATE analysis To explain I would say: The percentages of the COAL components are given by ultimate analysis and the proximate analysis is used to know the percentages of VOLATILE matter, moisture, etc.

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