Total amount of heat produced by a fuel having calorific value of 30 kJ/kg was found to be 60,000 Joules. How much fuel was burnt ?
Dear Student ,
Here in this case 30 KJ/kg means that 30 KJ heat energy is produced by burning 1 kg of the fuel .
Now let us take that x kg fuel is burnt to get 60000 J or 60 KJ of energy .
Therefore , amount of fuel burnt is = 60/30 = 2 Kg .
Hope it helps you .
Regards
Here in this case 30 KJ/kg means that 30 KJ heat energy is produced by burning 1 kg of the fuel .
Now let us take that x kg fuel is burnt to get 60000 J or 60 KJ of energy .
Therefore , amount of fuel burnt is = 60/30 = 2 Kg .
Hope it helps you .
Regards