Recognizing consistency among equilibrium constant, fre measurements on some cei
ID: 704196 • Letter: R
Question
Recognizing consistency among equilibrium constant, fre measurements on some ceils and calculated three quantities: ·The standard reaction free energy ? Go. The equilbrium constant K at 25.0°c. . The cell potential under standard conditions E His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of celln (Check the box next to any that are wrong.) AG A 2 Ol 3.94 × 10-so? 1.46 V O 282.k//mo! B | 2 | -208. kJ/mal ?| 3.63× 10- 1.08 V -154. kI/mol10o Explanation Check MacBook AirExplanation / Answer
remember these:
condition 1: when delta Go is negative,
Eo is positive and K is greater than 1
condition 2: when delta Go is positive,
Eo is negative and K is less than 1
in A: see condition 2
delta Go and K are in sync but Eo is greater than 0
Answer: Eo is wrong
in B: see condition 2
delta G and Eo are in sync but K is less than 1
Answer: K
in C: see condition 1
K and Eo are in sync but delta Go is negative
Answer: delta Go is wrong
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