In an experiment, on burning 3.5kg of fuel 70,000kj of energy was produced. Determine its calorific value???????????

 the calorific value is 3.5/70000=20000kj/kg

ohhhh 10qs 10qs....

 cal value = total heat produced /total mass

so, 

cal.value =70000/3.5

cal.value =20000kj/kg

so easy question

CALOROFIC VALUE = TOTAL HEAT PRODUCED / TOTAL BURNT

CALOFIC VALUE =70000/3.5 =20000KJ/KG 

=20,000 kj/kg.

simple

=20,000 kj/kg