[syleung]

About factors affecting the electrochemical cell's emf
i can only think of : temperature , concentration , area of electrode immersed in solution , position of the chemicals in electrochemical serise
wt else can affect the emf ?

[potatopotato]

if your electrode was a gas,

you could consider pressure STP too =)

[jcjlf]

About factors affecting the electrochemical cell's emf
i can only think of : temperature , concentration , area of electrode immersed in solution , position of the chemicals in electrochemical serise
wt else can affect the emf ?

Cleanliness of the metal surface (presence of oxidelayers) influences the emf.
Area of the electrode immersed in solution only affects the current strength, not the emf.
At least, so the textbooks say  .