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Chemistry question?
What type of reaction is represented in the following example?
2C2H4O(g) + 5O2 (g) 4CO2 (g) + 4H2O (l) ΔH = -2385 kJ
A) exothermic
B) endothermic
I think it's exothermic but I'm not sure. Help me understand?
2 Answers
- HumberthLv 57 years agoFavorite Answer
Exothermic, remember that exothermic reactions release energy.
Also, the ΔH can indicate the following:
*If the ΔH is positive, energy is needed to make the reaction occur, thus an endothermic reaction takes place.
*If the ΔH is zero, the system is in equilibrium.
*If the ΔH is negative, energy is released when the reaction occurs.
*And also, all combustions of hydrocarbons, alcohols... are exothermic.
Source(s): Chemistry Student - ?Lv 47 years ago
Exothermic, if the ÎH is negative its exothermic.
If it's positive then it's endothermic.
