A fuel has heat of combustion equal to 30 kJ / g. How much energy is released when 5 kilograms are oxidized?
Is it not 30kJ/g*5000g?
150000kJ (150MJ)
To find out how much energy is released when 5 kilograms of fuel are oxidized, we need to calculate the total heat of combustion.
Given:
Heat of combustion = 30 kJ/g
Mass of fuel oxidized = 5 kilograms
First, we need to convert the mass from kilograms to grams:
Mass in grams = 5 kilograms x 1000 grams/kilogram = 5000 grams
Now, we can calculate the total energy released during the combustion using the formula:
Energy released = Heat of combustion x Mass of fuel oxidized
Energy released = 30 kJ/g x 5000 grams = 150,000 kJ
Therefore, when 5 kilograms of fuel are oxidized, approximately 150,000 kJ of energy is released.