The activation energy for the reaction NO2(g)+CO(g)⟶NO(g)+CO2(g) is Ea = 175 kJ/mol and the change in...
The activation energy for the reaction NO2(g)+CO(g)⟶NO(g)+CO2(g) is Ea = 175 kJ/mol and the change in enthalpy for the reaction is ΔH = -375 kJ/mol . What is the activation energy for the reverse reaction?
Homework Answers
delta H = Eaf - Ear
Eaf is activation energy for forward direction
Ear is activation energy for reverse direction
so,
delta H = Eaf - Ear
-375 = 175 - Ear
Ear = 175 + 375
= 550 KJ/mol
Answer: 550 KJ/mol
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