Saturday
December 20, 2014

Homework Help: science

Posted by helpmeplease on Monday, December 10, 2007 at 10:30pm.

What energy changes occur in an electrochemical cell when electric current flows from it?

This is what I put down but I am not sure if it is right...

In a primary cell, chemical reactions use up some of the materials in the cell as electrons flow from it. This causes an energy change, because when these materials have been used up, the cell is said to be discharged and cannot be recharged.

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