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heat released in surroundings → -Q
When H2(g) and O2(g) react to form H2O(l), heat is released to the surroundings. Consider the reverse reaction, namely, the formation of H2(g) and O2(g) from H2O(l): 2 H2O(l) → 2 H2(g) + O2(g). Is this reaction exothermic or endothermic?
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Our tutors have indicated that to solve this problem you will need to apply the Endothermic & Exothermic Reactions concept. If you need more Endothermic & Exothermic Reactions practice, you can also practice Endothermic & Exothermic Reactions practice problems.
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Based on our data, we think this problem is relevant for Professor Laude's class at TEXAS.