The heat of combustion of jet fuel is 44.7 MJ/kg. A Boeing 747 burns 1.50 x 10^5 liters of jet fuel over the course of a 10 hour flight.If the density of jet fuel is 0.790 g/mL,how much heat would be released by the combustion of jet fuel during a 10 hrs?

The heat of combustion of jet fuel is 44.7 MJ/kg. A Boeing 747 burns 1.50 x 10^5 liters of jet fuel over the course of a 10 hour flight.If the density of jet fuel is 0.790 g/mL,how much heat would be released by the combustion of jet fuel during a 10 hrs? In MJ? In kJ? In J?

1 Answer
Apr 21, 2018

See below

Explanation:

I don't have a formula so I will use dimensional analysis:

#(44.7 MJ)/(cancel(kg)) xx(cancel(kg))/(1000cancel(g))xx (0.790cancel(g))/(cancel(ml))xx(1000cancel(ml))/(1cancel(L))xx(1.5xx10^5 cancel(L))/(10 hours)= 5.3xx10^5 MJ#

#5.3xx10^5 MJxx(10^6 J)/"1 MJ"= 5.3xx10^11 J#

#5.3xx10^11 Jxx"1 KJ"/(10^3 J)= 5.3xx10^8 KJ#