Cell Potential: Output of a Voltaic Cell 21.3 - 21.4
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20 Terms
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equilibrium
When the switch is closed and no reaction is occurring, each
half-cell is in an _______ state
half-cell is in an _______ state
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kinetic
A **VOLTAIC** cell converts the **delta G** of a spontaneous redox reaction
into the ________ energy of electrons.
into the ________ energy of electrons.
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voltage
**Cell potential** is also called the ______ of the cell
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pos
**Ecell** is _____ for a **SPONTANEOUS** PROCESS
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zero
The standard **hydrogen electrode** has a **standard electrode**
**potential** defined as ________
**potential** defined as ________
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oxidizing
The more **POS** the **E°value**, the more readily the **reactant**
will act as an ______ agent.
will act as an ______ agent.
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reducing
The more **NEG** the **E°value**, the more readily the **reactant**
will act as an ______ agent.
will act as an ______ agent.
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pos
The **oxidizing** agent is the reactant from the half-reaction with
the **more** _____ **E° half cell**
the **more** _____ **E° half cell**
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reducing
**Metals** that can displace H2 from **acid** are metals that are
**stronger** _____ agents than H2 .
**stronger** _____ agents than H2 .
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active
The more **negative** the **E° half-cell** of a metal, he more _____it is
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reduce
Any metal that has a **more negative E°value** will ____the ion of a metal **higher** up the list.
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For a **SPON RXN**
* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0
* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0
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=, =, =
For a **EQ RXN**
* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0
* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0
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>,
For a **non SPON RXN**
* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0
* **delt G** ____ 0
* **K** _____ 1
* **E cell** _____ 0
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When is **E cell > E° cell**
* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**
* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**
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=, =, =
When is **E cell = E° cell**
* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**
* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**
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>,
When is **E cell < E° cell**
* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**
* **Q ___ 1**
* **R ___ P**
* **ln(Q) ____ 0**
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concentration
A ____ cell exploits the effect of concentration
changes on cell potential.
changes on cell potential.
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noyt
As long as the concentrations of the solutions are **DIFF**,
the **cell potential** is _____ 0 and the cell can do **work**.
the **cell potential** is _____ 0 and the cell can do **work**.
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0
When the anode and cathode are the **same compound** and have the **same** **concentration**, the **cell potential** is ______
Note 
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