Asked by  | 14th Jun, 2008, 02:22: PM

Expert Answer:

dear student it is not possible for a single elementary reation to be both endothermic and exothermic at same time.Though it might be possible that there is no heat evolved in the reaction or all work done goes into increment of internal energy of system.

Answered by  | 20th Jun, 2008, 07:37: PM

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