Gross heating value of coal is ______________ the net heating value?
Correct answer: A. Higher than
- A. Higher than
- B. Lower than
- C. Same as
- D. Either A. or B.; depends on the type of coal
Explanation
Gross heating value includes the heat recovered when water vapour in the combustion products condenses, whereas net heating value excludes this latent heat. Thus, gross heating value is always higher than net heating value for ordinary fuels.
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