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m= 2 kg
Δt= 60 - 10= 50⁰C
c= 4.200 J/kg⁰C
Ditanya :
Q ?
Jawab :
Q= m × c × Δt
Q= 2 × 4.200 × 50
Q= 8.400 × 50
Q= 420.000
Jadi, kalor yang diperlukan adalah 420.000 J.
Q = 2 x 4200 x (60-10)
Q = 4200 x 2 x 50
Q = 4200 x 100
Q = 420000 J
Q = 420 kJ