September 2019 1 62 Report
Diketahui Reaksi :

H₂O(l) ⇒ H₂(g) + ¹/₂O₂(g) ∆H = +68,3 kkal
H₂(g) + ¹/₂O₂(g) ⇒ H₂O(g) ∆H = -57,8 kkal
H₂O(l) ⇒ H₂O(s) ∆H = -1,4 kkal

perubahan entalpi es menjadi uap adalah?

a. +124,7 kkal
b. +9,1 kkal
c. -9,1 kkal
d. +11,9 kkal
e. -11,9 kkal

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