1.

60 MJ energy is produced on combustion of 2 kg of coal. Find how much energy is produced on burning 0.5 kgof coal. Also find the calorific value of coal.

Answer»

Solution :(i) Definition of calorific avlue .
(ii) Calorific value is constgant for a GIVEN substance.
(iii) Q=mc
(iv) `Q PROP m`
(v) `30 kJ g^(-1) , 15 mJ`


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