Question

One mole of ethanol releases 326.7 Calories of energy during combustion. How many kilojoules are released?

Answer 1

To convert Calories to kilojoules, we need to multiply the value by 4.184. Therefore:

326.7 Calories * 4.184 kJ/Calorie = 1367.3 kJ

So one mole of ethanol releases 1367.3 kJ of energy during combustion.