Energy Changes & Reversible Reactions Flashcards

All 4 cards in this deck

If a reversible reaction is exothermic in one direction, what is it in the opposite direction?

Endothermic, and the same amount of energy is transferred in each direction.

True or false? In a reversible reaction, the forward reaction transfers more energy than the reverse reaction.

False. Exactly the same amount of energy is transferred in each direction, just in opposite directions.

In the reaction hydrated copper sulfate $\rightleftharpoons$ anhydrous copper sulfate $+$ water, which direction is endothermic?

The forward direction (heating to drive off water); adding water back is exothermic.

True or false? A reversible reaction that absorbs energy when it goes forwards releases energy when it goes backwards.

True. The reverse of an endothermic reaction is exothermic, transferring the same amount of energy.