The Horse 2019/20

Technology & Environment

Energy calculation from a cup of cereals

Hi there

As Homework we had to calculate the kj to kwh from a meal.
Every morning I eat a cup of cereals. So I decided to take a cup of cereals as an example.

So 100 g of Kelloggs Cornflakes has about 372 kcal.

Calculation:
1 kcal  =  4.1868 kJ  =  0.001163 kWh
372 kcal = 1557.50 kJ = 0.432636 kWh

For the calculation I used the following link: calculation kJ and kWh

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