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Questions  

The calorific value of a fuel is expressed in a unit called _____________

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By Expert Faculty of Sri Chaitanya
a
joule per kg
b
kilojoule per kg
c
kilojoule per g
d
joule per litre

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detailed solution

Correct option is B

The calorific value of a fuel is expressed in a unit called kilojoule per kg.

The amount of heat produced on burning one kilogram of fuel completely is called its calorific value.

It is given by the formula -  Heat produced  /Amount of fuel .   

The SI unit of heat is kilojoules and that of mass is kilogram, so the unit of calorific value of a fuel is kilojoule per kg.

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