Recall that for energy diagrams:
If we need to calculate for the EA of the decomposition reaction (reverse reaction), we just have to take the difference of ΔE or ΔH and the EA of the forward reaction
The activation energy for some reaction
X2 (g) + Y2 (g) → 2XY (g)
is 167 kJ/mol, and ΔE for the reaction is 128 kJ/mol. What is the activation energy for the decomposition of XY?
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Based on our data, we think this problem is relevant for Professor Perrin's class at UCSD.
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.