Science, asked by uminna1111, 1 year ago

What do you understand by fuel efficiency?

Answers

Answered by BloomingBud
14

Q. What do you understand by fuel efficiency?

ANSWER :

Fuel efficiency is determined by its calorific value which is amount to heat energy produced on complete combustion of 1 kg fuel. The calorific value of a fuel is expressed in kJ/kg.

A good fuel should have high calorific value. That means it should produce large amount of heat per unit mass.

Answered by Theopekaaleader
1

Explanation:

reactions :

Reaction 1 :

Iron + Copper sulphate ⟶ Iron sulphate + Copper

Reaction 2 :

Iron sulphate + Copper Iron sulphate + Copper

Reaction 2 will not occur as Iron is more reactive than copper , so copper could not replace iron from iron sulphate .

Type of reaction between copper sulphate solution and iron : Displacement reaction .

Displacement reaction : A reaction in which an element replaces the less reactive element from its compound forming another compound with the anion is called single displacement reaction .

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