Problem: Which of the following changes to a voltaic cell would cause an increase in potential (i.e., more positive Ecell)?_an increase in active ion concentration at the cathode_an increase in active ion concentration at the anode_an increase in temperature where K/Q > 1._an increase in temperature where K/Q = 1

FREE Expert Solution

cathode → reduction → lose electrons

anode → oxidation → gain electrons

add ion concentration cathode → favor reverse reaction

add ion concentration anode → favor forward reaction

temperature where K/Q > 1 → favor reverse reaction

temperature where K/Q = 1 → no effect