Calorofic value of coal increases with the Select one:a.decrease in sulphur contentb.increase in ash contentc.decrease in fixed carbond.decrease in moisture contentClear my choice
Question
Calorofic value of coal increases with the Select one:a.decrease in sulphur contentb.increase in ash contentc.decrease in fixed carbond.decrease in moisture contentClear my choice
Solution
The calorific value of coal increases with the decrease in moisture content.
Here's why:
The calorific value of coal refers to the amount of heat energy that can be produced by the complete combustion of a certain amount of coal.
Moisture in coal reduces its calorific value. When coal is burned, the moisture content needs to be evaporated, which consumes some of the heat energy produced. Therefore, the higher the moisture content, the lower the calorific value of the coal.
On the other hand, the sulphur content, ash content, and fixed carbon do not have a direct impact on the calorific value of coal.
So, the correct answer is d. decrease in moisture content.
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