Problem: Predict whether the following reactions will be exothermic or endothermic.a. N2(g) + 3H2(g) → 2NH3(g)b. S(g) + O2(g) → SO2(g)c. 2H2O(g) → 2H2(g) + O2(g)d. 2F(g) → F2(g)

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We’re being asked to classify each given reaction as exothermic or endothermic

Recall that:

Exothermic reactions: lose energy and involve bonds forming; ΔH is negative

Endothermic reactions: gain energy and involve bonds breaking; ΔH is positive

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Problem Details

Predict whether the following reactions will be exothermic or endothermic.

a. N2(g) + 3H2(g) → 2NH3(g)

b. S(g) + O2(g) → SO2(g)

c. 2H2O(g) → 2H2(g) + O2(g)

d. 2F(g) → F2(g)

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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 Delgado's class at FIU.