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

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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


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Problem Details
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