A Student Made Measurements On Some Electrochemical Cells And Calculated Three Quantities The Standard Reaction Free 1 (28.79 KiB) Viewed 39 times
A Student Made Measurements On Some Electrochemical Cells And Calculated Three Quantities The Standard Reaction Free 2 (24.59 KiB) Viewed 39 times
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 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 digit correct Also note: for each cell, the number n of electrons transferred per redox reaction is 1. calculated quantities (Check the box next to any that are wrong.) cell n 1 K A 1 55. /mol 432 x 10 -0.57 V OP B 1 70. /mol 5.45 X 10 0.73 V c с 59 /mol 10 2.17 x 10 0.61 V
The statements in the tables below are about two different chemical equilibria. The symbols have their usual meaning, for example AG standard Gibbs free energy of reaction and K stands for the equilibrium constant In each table, there may be one statement that is false because it contradicts the other three statements. If you find a false statement, ch it. Otherwise, check the "no false statements" box under the table. statement false? statement false? х 2 AGO o AG'>0 Ink>0 In K>0 K<1 AS ΔΗ 7 AS AH T K<I no false statements: no false statements:
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