Mechanescht Äquivalent vun Hëtzt - Problemer a Léisungen

1. 2 kcal (Kilo c Kalorien e ) = ….. c Kalorien e?

Léisung

1 kcal = 1000 kcal

2 kcal = 2 ( 1000 kcal ) = 2000 kcal

2. 4 C Kalorie e = ….. c Kalorie e?

Léisung

1 Kalorie e ( a Kapital C ) = 1 kcal = 1000 Kalorie e

4 C Kalorie e = 4 (1000 C Kalorie e ) = 4000 C Kalorie e

3. 10 c Kalorie e = ….. Joule?

Léisung

1 Kalorie e = 4.186 Joule

10 c Kalorien e = 10 (4.186 Joule) = 41.86 Joule

[irp]

4,5 kcal = … Joule?

Léisung

1 kcal = 1000 kcal = 4186 Joule

5 kcal = 5 (4186 Joule) = 20930 Joule

5. 2000 Joule = … kcal?

Léisung

4186 Joule = 1 kcal

8372 Joule = 8372 / 4186 = 2 kcal

2000 Joule = 2000 / 4186 = 0.4777 kcal

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