Problem: 5.81Without doing any calculations, predict the sign of ΔH for each of the following reactions:(b) 2 H(g) → H2(g)

FREE Expert Solution

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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5.81

Without doing any calculations, predict the sign of ΔH for each of the following reactions:

(b) 2 H(g) → H2(g)

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What scientific concept do you need to know in order to solve this problem?

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 Schwartz's class at ARIZONA.

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Our data indicates that this problem or a close variation was asked in Chemistry: The Central Science - Brown 14th Edition. You can also practice Chemistry: The Central Science - Brown 14th Edition practice problems.