Choose ONE word from the statement above that indicates that the cell is a galvanic cell. Define the following: - Galvanic cell - Electrolyte What energy conversion will take place in the cell above? Which ONE of the electrodes is the cathode? Write down the half-reaction at the cathode. Calculate the emf of the cell under standard conditions. Write down the cell notation for the cell above. Worldwide interest in renewable energy technologies continues to see strong growth each year. The outlook remains positive, especially for alternative solar energy technology applications. Name ONE alternate energy source, besides solar energy. Name THREE uses of a photovoltaic cell.

NSC Technical Sciences Electrolytic cells and galvanic cells: Choose ONE word from the stateme

Choose ONE word from the statement above that indicates that the cell is a galvanic cell - NSC Technical Sciences - Question 6 - 2021 - Paper 2

Question 6

Choose ONE word from the statement above that indicates that the cell is a galvanic cell. Define the following: - Galvanic cell - Electrolyte What energy conve... show full transcript

Worked Solution & Example Answer:Choose ONE word from the statement above that indicates that the cell is a galvanic cell - NSC Technical Sciences - Question 6 - 2021 - Paper 2

Step 1

Choose ONE word from the statement above that indicates that the cell is a galvanic cell.

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Answer

The word is "spontaneous".

Step 2

Define the following: Galvanic cell

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Answer

A Galvanic cell is an electrochemical cell that generates electrical energy from spontaneous chemical reactions occurring within the cell.

Step 3

Define the following: Electrolyte

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Answer

An electrolyte is a substance that produces an electrically conducting solution when dissolved in water, consisting of ions that migrate towards the electrodes.

Step 4

What energy conversion will take place in the cell above?

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Answer

The energy conversion that takes place in the cell is the conversion of chemical energy into electrical energy.

Step 5

Which ONE of the electrodes is the cathode?

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Answer

The silver electrode (Ag) is the cathode.

Step 6

Write down the half-reaction at the cathode.

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Answer

The half-reaction at the cathode is:

ightarrow ext{Ag}(s)$$

Step 7

Calculate the emf of the cell under standard conditions.

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Answer

Using the given standard electrode potentials: $E^ ext{cell} = E^ ext{cathode} - E^ ext{anode} = (0.80 ext{ V}) - (-0.27 ext{ V}) = 1.07 ext{ V}$

Step 8

Write down the cell notation for the cell above.

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Answer

The cell notation for the cell is: $ext{Ni}(s) | ext{Ni}^{2+}(aq) || ext{Ag}^{+}(aq) | ext{Ag}(s)$

Step 9

Name ONE alternate energy source, besides solar energy.

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Answer

Biomass.

Step 10

Name THREE uses of a photovoltaic cell.

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Answer

Powering residential solar energy systems.
Fueling satellites and space stations.
Charging batteries in remote locations.

Choose ONE word from the statement above that indicates that the cell is a galvanic cell - NSC Technical Sciences - Question 6 - 2021 - Paper 2

Worked Solution & Example Answer:Choose ONE word from the statement above that indicates that the cell is a galvanic cell - NSC Technical Sciences - Question 6 - 2021 - Paper 2

Choose ONE word from the statement above that indicates that the cell is a galvanic cell.

Define the following: Galvanic cell

Define the following: Electrolyte

What energy conversion will take place in the cell above?

Which ONE of the electrodes is the cathode?

Write down the half-reaction at the cathode.

Calculate the emf of the cell under standard conditions.

Write down the cell notation for the cell above.

Name ONE alternate energy source, besides solar energy.

Name THREE uses of a photovoltaic cell.

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