Cell Potential: Output of a Voltaic Cell 21.3 - 21.4

equilibrium

When the switch is closed and no reaction is occurring, each

half-cell is in an _______ state

kinetic

A **VOLTAIC** cell converts the **delta G** of a spontaneous redox reaction

into the ________ energy of electrons.

voltage

**Cell potential** is also called the ______ of the cell

pos

**Ecell** is _____ for a **SPONTANEOUS** PROCESS

zero

The standard **hydrogen electrode** has a **standard electrode**

**potential** defined as ________

oxidizing

The more **POS** the **E°value**, the more readily the **reactant**

will act as an ______ agent.

reducing

The more **NEG** the **E°value**, the more readily the **reactant**

will act as an ______ agent.

pos

The **oxidizing** agent is the reactant from the half-reaction with

the **more** _____ **E° half cell**

reducing

**Metals** that can displace H2 from **acid** are metals that are

**stronger** _____ agents than H2 .

active

The more **negative** the **E° half-cell** of a metal, he more _____it is

reduce

Any metal that has a **more negative E°value** will ____the ion of a metal **higher** up the list.

For a **SPON RXN**

* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0

=, =, =

For a **EQ RXN**

* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0

>,

For a **non SPON RXN**

* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0

When is **E cell > E° cell**

* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**

=, =, =

When is **E cell = E° cell**

* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**

>,

When is **E cell < E° cell**

* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**

concentration

A ____ cell exploits the effect of concentration

changes on cell potential.

noyt

As long as the concentrations of the solutions are **DIFF**,

the **cell potential** is _____ 0 and the cell can do **work**.

0

When the anode and cathode are the **same compound** and have the **same** **concentration**, the **cell potential** is ______