The energy that a fuel can produce is determined by its calorific value. Identify the correct option that is the physical unit of calorific value of fuels.

Kilojoule

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Milligram

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Kilogram

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Moles

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Solution

The correct option is A Kilojoule
The energy contained in a fuel or food is determined by measuring the heat produced by the complete combustion of a specified quantity of it. This is now usually expressed in joules per kilogram.

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Similar questions

Q. What is calorific value of a fuel? Why is hydrogen not used as a fuel though it has the highest calorific value?

Calorific value is the energy contained in a fuel, determined by measuring the heat produced by the complete combustion of a quantity. Which among the following do you think will have the highest calorific value?

Q. Which of the following will produce more heat?
1.

3 k g

of fuel X (Calorific value

= 12000 J / k g

)
2.

4 k g

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= 10000 J / k g

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Q. Kavita wrote two sentences about calorific value of fuels.
(i)

The amount of heat energy required by

1 k g

of a fuel to reach its ignition temperature for the complete combustion is called its calorific value.
(ii)

It is expressed in a unit called kilojoule per kg

(k J / k g)

.
Choose the correct sentence(s).

Q. On burning completely 1.5 kg of a fuel produces 75,000 kJ of heat energy. The calorific value of the fuel is –

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The energy that a fuel can produce is determined by its calorific value. Identify the correct option that is the physical unit of calorific value of fuels.

The correct option is A KilojouleThe energy contained in a fuel or food is determined by measuring the heat produced by the complete combustion of a specified quantity of it. This is now usually expressed in joules per kilogram.

The correct option is A Kilojoule
The energy contained in a fuel or food is determined by measuring the heat produced by the complete combustion of a specified quantity of it. This is now usually expressed in joules per kilogram.