Homework Answers
Sol.
As Balanced reaction of combustion :
C6H12O6 + 6O2 ----> 6CO2 + 6H2O
Energy released for 1 mole of glucose , C6H12O6 = 2387 KJ
Also , 1 mole of glucose , C6H12O6 combines with 6 moles of oxygen , O2
So , Energy released for 6 moles of O2 = 2387 KJ
And , Energy released for 3.348 moles of O2
= 2387 × 3.348 / 6
= 1331.946 KJ
As 4.184 Kilojoule ( KJ ) = 1 Calories ( Cal )
So , Energy released for 3.348 moles of O2
= 1331.946 / 4.184 Cal
= 318.343 Cal
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