Question

which fuel would you select :- (a) high calorific value (b) low calorific value give reason..​

Answer 1

Answer:

a is correct..

bcoz obviosly u will choose the fuel which will give more heat on burning less

Explanation:

hope it will help u

Answer 2

Answer:

Explanation:

CALORIFIC VALUE OF FUELS

      When fuels are burnt, heat is produced. The amount of heat produced by different types of fuels on burning is expressed in terms of calorific value. Calorific value of a fuel may be defined as the amount of heat produced on complete burning of 1 gm of fuel. S.I. unit of calorific value of fuels is kilojoule per gram (KJ/g). For example, when one gram of wood is burnt completely it produces 17 kilojoules heat. Therefore, the calorific value of wood is 17 KJ/g. in similar manner, when 1 gm of kerosene oil is burnt completely it produces 48 kilojoules heat. So, the calorific value of kerosene oil is 48 KJ/g. the calorific value of different types of fuels is given in following table.

FUELS                                                    -     CALORIFIC VALUE OF FUELS

Hydrogen                      -                                 150 KJ/g

2. Methane                       -                                     55 KJ/g

3. LPG                               -                               50 KJ/g

4. Kerosene oil               -                                                48 KJ/g

5. Charcoal                       -                         33 KJ/g

6. Wood                       -                       17 KJ/g