Our exercise was to convert the amount of kcal of a daily meal into kJ and kWh.

I decided to calculate the amount of kJ and kWh of a portion "Rice Casimir". Here you can find the recipe,
I used: recipe "Rice Casimir"

Here you can find my calculation:

amount of kcal = 723
0.00116 kWh = 1 kcal -> 723 * 0.00116= 0.83868 kWh
4.19 kJ = 1 kcal -> 723 * 4.19 = 3'029.37 kJ

For the calculation I used the following data:

Energieeinheiten

Einheit der Wärmemenge = Joule (J = N m), vormals Kalorien (kcal)

1 Joule (J) = 1 Wattsekunde (Ws)
3,6 kJ = 3.600 Joule (J) = 1 Wattstunde (Wh)
3,6 MJ = 3.600.000 Joule (J) = 1 Kilowattstunde (kWh)

Umrechnungstabelle:
1 kWh = 860 kcal = 3.600 kJ (=3,6 MJ)
0,00116 kWh = 1 kcal = 4,19 kJ
0,278 kWh = 239 kcal = 1 MJ

Definition: Energie pro Zeiteinheit
Einheiten der Leistung: Watt (W = J/s)

Wärmeeinheiten (WE) = kcal/h

Umrechnungstabelle:
1 kW = 860 kcal/h = 860 WE
1,16 kW = 1 Mcal/h = 1.000 WE

You can find this data on the following website: Energy units

Tamara Keller, BM2 Teilzeit 2019

The Horse 2019/20