Question

Diket:42000 J m:5K t awal: 2°c c;2.100 J/kg°c ditanya: t akhir:.....................°C

Answer 1

diketahui :

Q = 42.000 J

m = 2 kg

t1 = 2°C

c = 2.100 j/kg° c

ditanya :

t2

jawab :

Q = m . c . Δt

Δt = Q / m . c

t2 - t1 = 42.000 / 5 x 2.100

t2 - 2 = 42.000 / 10.500

t2 - 2 = 4

t2      = 4 + 2

t2      = 6° C