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Chapter 21: Q21.8P (page 972)

Which type of electrochemical cell has 螖骋sys<0? Which type shows an increase in free energy?

Short Answer

Expert verified

For voltaic cells, use the 螖骋sys<0

For electrolytic cells, use螖骋sys>0

Step by step solution

01

Definition of an electrochemical cell

An electrochemical cell is a device that uses chemical reactions to create a potential difference between electrodes. Electrochemical cells include galvanic cells and electrolytic cells.

02

The probability if all three family members are assigned to the same station

Voltaic cells (also known as Galvanic cells) have a 螖骋sys<0 and thus exist naturally.

Electrolytic cells, on the other hand, show an increase in free energy, implying that they involve non-spontaneous processes for which螖骋sys>0.

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