" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
∆T = 92 - 27 = 65°C
C = 900 J/°C
Q = Qair + Qpanci
Q = (m × c × ∆T) + (C × ∆T)
Q = (2 × 4.200 × 65) + (900 × 65)
Q = 604.500 J
Kelas : VII
Kategori : Kalor
Kata Kunci : jumlah kalor, kapasitas kalor, kalor jenis
Dik:
m air = 2 kg
T1 = 92°C
T2 = 27°C
ΔT = 92 - 27 = 65°C
Cpanci = 900 J/°C
c air = 4.200 J/kg.°C
Dit:
Qtotal
Jawab:
Qtotal = Qpanci + Qair
Qtotal = Cpanci . ΔT + m.cair.ΔT
Qtotal = 900 . 65 + 2 . 4200 . 65
Qtotal = 58500 + 546000
Qtotal = 604500 Joule
Qtotal = 604,5 kJ
Jadi jumlah kalor yang dibutuhkan adalah sebesar 604.500 Joule atau 604,5 kJ.