Is the rxn endothermic or exothermic?Is energy, in the form of heat, absorbed or released as the rxn occurs?

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Is the rxn endothermic or exothermic?Is energy, in the form of heat, absorbed or released as the rxn occurs?

The equation for the fermentation of glucose to alcohold and carbon dioxide is:
C6H12O6(aq) -> 2C2H5OH(aq) + 2CO2 (g)

The enthalpy change for the reaction is -67 kJ.
Is the reaction endothermic or exothermic?Is energy, in the form of heat, absorbed or released as the reaction occurs?

My book doesn't really explain to me how to know when a reaction is endo or exothermic so I'm confused. Thanks for any help at all in advance. I really did try to do this problem, but since i dont know where to start, its really frustrating >.< thanks!

&please do explain a little how the answer is derived

2007-04-18 17:05:28 · 1 answers · asked by krazywunhere 1 in Science & Mathematics ➔ Chemistry

1 answers

The reaction is exothermic and energy is released in the form of heat.

2007-04-18 17:24:33 · answer #1 · answered by ag_iitkgp 7 · 0⤊ 0⤋