Berapakah kalor yang diperlukan untuk menguapkan 2kg es yang bersuhu-10 celsius sehingga seluruhnya menguap jika kalor jenis es 2.100 j/kg, kalor jenis air 4.200j/kg, kalor lebur es 334.000j/kg,dan kalor uap air 2.260.000 j/kg.
nandanms
Dik = m = 2 kg Ces = 2.100 j/kg Cair = 4.2000 j/kg L = 334.000 j/kg U = 2.260.000 j/kg dit = Q ? jwb = Q = m x U → (rumus kalor uap) = 2kg x 2.260.000 j/ kg = 4.520.000 j → 4.520 kJ
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yohanatasya
Dik: m = 2 kg Δt = Δt = = 2100 J/kg = 4200 J/kg L= 334000 J/kg U = 334000 J/kg Dit: = ...?
= m × × Δt = 2 × 2100 × 10 = 42000 J = m × L = 2 × 334000 = 668000 J = m × × Δt = 2 × 4200 × 100 = 840000 J = m × U = 2 × 2260000 = 4520000 J
Ces = 2.100 j/kg
Cair = 4.2000 j/kg
L = 334.000 j/kg
U = 2.260.000 j/kg
dit = Q ?
jwb = Q = m x U → (rumus kalor uap)
= 2kg x 2.260.000 j/ kg
= 4.520.000 j → 4.520 kJ
Δt =
Δt =
= 2100 J/kg
= 4200 J/kg
L= 334000 J/kg
U = 334000 J/kg
Dit: = ...?
= m × × Δt
= 2 × 2100 × 10
= 42000 J
= m × L
= 2 × 334000
= 668000 J
= m × × Δt
= 2 × 4200 × 100
= 840000 J
= m × U
= 2 × 2260000
= 4520000 J
= + + +
= 42000 J + 668000 J + 840000 J + 4520000 J
= 6070000 J