Sign of Ecell changes when the direction is reversed?? CONFUSED??

Why only in this example when we reverse the direction of the equation we also reverse the sign of the EMF ????

But in other examples like the one below, when we reverse the direction of the equation we don't reverse the sign of the EMF ?? :s-smilie:

BUMP!!Anyone please.. :redface:

In all cases you reverse the sign of the cell EMF upon reversing the direction of the reaction. EMF reverse = negative EMF forward

Original post by Protoxylic

In all cases you reverse the sign of the cell EMF upon reversing the direction of the reaction. EMF reverse = negative EMF forward

Really? So in this example

Cu²⁺ + 2e --> Cu was reversed so shouldn't the emf be -0.34? :s-smilie:

Don't reverse the emf. Use the values given always.

What to do if you’re worried about the cost of university

What university is really like

New year study resolutions that you can actually stick to

How to find private off-campus student housing