temp. affecting voltage (1 Viewer)

[Farmerism]

can anyone explain to me how environmental temperature (or temperature of the external wire or anything else) affects the voltage of galvanic cells please?

excel says that temperature affects the voltage without explaining it

but im thinking that perhaps if the temperature of surroundings heats up external wires, then the rate of particle collisions with with electron flow will increase, so increase in resistance will cause the voltage to drop..

can anyone clarify this?

 

[hyparzero]

can anyone explain to me how environmental temperature (or temperature of the external wire or anything else) affects the voltage of galvanic cells please?

excel says that temperature affects the voltage without explaining it

but im thinking that perhaps if the temperature of surroundings heats up external wires, then the rate of particle collisions with with electron flow will increase, so increase in resistance will cause the voltage to drop..

can anyone clarify this?

that is exactly right.

Metals' conductivity decreases as temperature increases, but for semi-conductors, resistance decreases as temperature increases.