= - nFEo
= - RTlnK
So,
when is positive , Eo is negative, and K < 1
and, when is negative , Eo is positive and
K > 1.
Now,
A.
is negative, so K > 1 and Eo must be pisitive.
Given, K >1 but Eo is negative.
Therefore, in row A, Eo is wrong.
B.
is negative , so K must be > 1 , and Eo is positive.
Given, K < 1 and Eo is positive.
So, in row B , K is wrong.
C.
is negative, so K must be > 1 and Eo is positive.
But given , K < 1 and Eo is negative . If E0 is negative , K must be K < 1.
As only one quantity can be wrong.
So in row C , is wrong.
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ADVANCED MATERIAL Recognizing consistency among equilibrium constant, free energ... A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG". • The equilibrium 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 mistes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake...
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A student made measurements on some electrochemical cells and calculated three quantities 0 The standard reaction free energy AG . The equilibrium constant K at 25.0 °C 0 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...
A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG'. • The equilibrium 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...
A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AGO. • The equilibrium 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...