On the diagram, Ea(fwd) = 140 kJ/mol and Ea(rev) = 80 kJ/mol.
What is ΔH for the forward reaction?
- A
-220 kJ/mol
- B
-60 kJ/mol
- Ccheck_circle
+60 kJ/mol
- D
+220 kJ/mol
Explanation
ΔH = Ea(fwd) - Ea(rev) = 140 - 80 = +60 kJ/mol (endothermic).
Reaction Energy Profile
AP Chemistry· difficulty 2/5
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