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= c es = 2100 j/kg
= L = 340000 j/kg
= c air = 4200 j/kg
t1 = -10
t2 = 100
ditanaya = Q......?
jawab = Q = Q1 + Q2 + Q3
= m. c . Δt + m . L + m . c . Δt
= 0,2 kg × 2100 j/kg× (0 - (-10)) + 0,2 ×340000 j/kg + 0,2 × 4200 × (100 - 0)
= 4200 + 68000 + 84000
= 156200 j/kg
semoga bermanfaat...........
= 0,2×2100×10
= 4200 J
Q = m × L
= 0,2 × 340.000
= 68.000J
Q = m×Cair×Δt
= 0,2×4200×10
= 8400 J
Q1 + Q2 + Q3= 12668 J