Question

Solder listrik tertulis 110 W / 220 V dipakai selama 2 jam. berapa kalori energi yang di hasilkan solder tersebut

Answer 1

Verified answer

w=P.t
= 110W.7200s
= 792.000J(Joule)
= 792Kj (Kilo Joule)

Answer 2

P = 110 W
t = 2 jam = 2×3600 s
W = ___ kal

W = P t
W = (110 W) (2×3600 s)
W = 792000 J
W = 792000/4,2 = 1,89×10⁵ kal ✓