Typically, when a cathode and anode are inserted into a solution that allows current to flow, the ions are moving with a certain kinetic energy.
If the ions were to gain kinetic energy (through transfer of thermal energy for example), will more current be able to flow, and will the potential difference increase?
My assumption for this is that increased ion kinetic energy will speed up the rate of ions being attracted to each electrode, thus causing more charge to arrive in a given period of time. As I = Q/t where I = current, Q = charge and t = time, would this mean an increased current?
Edit: I've performed a basic experiment in which I got a tupperware container, stuck in some multimeter probes, and tested the difference in potential (voltage) for NaCl (well... table salt) in solution when cold and hot, then for water cold and hot. I appreciate there are many issues with reliability, but the general results were:
Water cold = 0.082V
Water hot = 0.000V (actually went into the negative then stabilised at 0)
NaCl cold = 0.065V
NaCl hot = 0.130V
Now, my real experiment involved AgNO3 being titrated into KCl (mixed with deionised water and a little HNO3 to acidify) - assuming the temperature remained constant, what effect could increasing the ions' velocity have on conductivity, without heating it up (increasing kinetic energy) to alter viscosity?