In an average week Justin consumes about 3 Döner. How many hours could Justin have operated an LED lamp with the energy he consumed ?
100g of Döner contain 770 kJ
1 Döner is about 330g
the energy consumption of an average LED lamp is about 60 Wh per hour.
(1 Wh = 3600 Ws (Wattsekunde) = 3600 Joule = 3,6 Kilojoule (kJ).