When 2 moles of C2H6 (g) react with O2 (g) to form CO2 (g) and H2O (g) according to the following equation, 2.86 x 103 kJ of energy are evolved.
2C2H6 (g) + 7O2 (g) → 4CO2 (g) + 6H2O(g)
Is this reaction endothermic or exothermic?
What is the value of q?
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