Determining Average Cell Voltage of a Cu-Fe Cell at 298 K

What was the average cell voltage determined by the student?

A) 0.676 V

B) 0.298 V

C) 0.149 V

D) 0.338 V

Answer:

The average cell voltage of a Cu-Fe cell at 298 K is approximately 0.338 V, as per the conventions of electrochemistry.

In this scenario, a student conducted a measurement of the cell voltage of a Cu-Fe cell at a temperature of 298 K. The question arises as to what the average cell voltage determined by the student is. According to the data provided, the closest value to the average cell voltage is option D, which is 0.338 V.

Understanding this concept requires knowledge in the field of electrochemistry. Using a voltmeter, the potential difference between the two half-cells in an electrochemical cell can be measured. In the case of a Cu-Fe cell, the Cu half-cell acts as the cathode and is connected to the red (positive) input of the voltmeter, while the anode or SHE is connected to the black (negative) input.

The measured average cell voltage aligns with the sign conventions in electrochemistry with an approximate value of +0.337 V. It is crucial to comprehend the principles of cell potential to interpret and analyze such data accurately.

For further understanding of Cell Potential, you can explore more resources on the topic.