Chemistry
Senior High
この解き方を教えてください。答えは44kj/molになります。よろしくお願いします。
4 ヘスの法則
次の化学反応式から, 水の蒸発エンタルピーを求めよ。
H2(気) + 1/2O2(気)→H2O (液)
AH = -286 kJ
H2(気) +1202(気) H2O (気)
→
AH = -242kJ
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