Term
| which electrochemical cell generates energy? |
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Definition
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Term
| which electrochemical cell is nonspontaneous? what does it need to become spontaneous? |
|
Definition
electrolytic cells (have +ΔS)
an eletric current can be passed through the solution |
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Term
| which electrochemical cell is spontaneous? |
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Definition
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Term
Despite the cell type,
reduction always occurs at the _______
oxidation always occurs at the _______
|
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Definition
cathode
anode (a =without
= e- are leaving) |
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Term
For a galavanic cell the
anode is _____
cathode is _____
(positive, negative) |
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Definition
anode: negative
(this where the e- are located, and they travel
anode→cathode)
cathode: positive |
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Term
For a electrolytic cell the
anode is _____
cathode is _____
(positive, negative) |
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Definition
anode: positive
cathode: negative |
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Term
| Despite the cell type ,electrons always flow from ____ to ____ |
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Definition
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Term
| the cell potential for a galavanic cell must be |
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Definition
greater than zero
(positive) |
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Term
| the cell potential for a electrolytic cell must be |
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Definition
|
|
Term
how do you calculate the cell potential?
(despite cell type) |
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Definition
| E cell= E cathode- E anode |
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Term
| for an electrochemical cell, eletron flow creates |
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Definition
|
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Term
| what 2 effects occur if electron flow stops? |
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Definition
1. cell potential is ZERO
2. system at equilibrium |
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