For a redox reaction with E° = 0.45 V and n = 3, what is the maximum work (W) obtainable from the reaction if 1 mole of reactants is used?

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Q: For a redox reaction with E° = 0.45 V and n = 3, what is the maximum work (W) obtainable from the reaction if 1 mole of reactants is used?

Solution: W = -nFE° = -3 * 96485 C/mol * 0.45 V = -130.9 kJ.

Steps: 8

Step 1: Identify the values given in the problem. We have E° = 0.45 V and n = 3.
Step 2: Understand the formula for calculating maximum work (W) in a redox reaction: W = -nFE°.
Step 3: Identify the value of F, which is the Faraday constant. F = 96485 C/mol.
Step 4: Substitute the values into the formula: W = -3 * 96485 C/mol * 0.45 V.
Step 5: Calculate the product of n, F, and E°: 3 * 96485 = 289455 C*V/mol.
Step 6: Multiply the result by 0.45 V: 289455 * 0.45 = 130.2525 kJ.
Step 7: Since the formula gives a negative value for work, we write W = -130.2525 kJ.
Step 8: Round the answer to three significant figures: W = -130.9 kJ.