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consider the following galvanic cell with a standard hydrogen electrode (S.H.E.)

ID: 826549 • Letter: C

Question

consider the following galvanic cell with a standard hydrogen electrode (S.H.E.) as the left electrode.

Consider the following galvanic cell with a standard hydrogen electrode (S.H.E.) as the left electrode. Calculate the overall cell potential based on the indicated shorthand notation. Assume the temperature is 25degree C. Now consider the above cell is shorted and electrons are allowed to flow freely. Would the Co electrode act as the anode or the cathode? Consider the following galvanic cell with a standard hydrogen electrode (S.H.E.) as the left electrode. Calculate the overall cell potential based on the indicated shorthand notation. Assume the temperature is 25degree C.

Explanation / Answer

according ti Nernest eq.

Ecell = E0cell - (0.059/n)log[1/Co+2]

Ecell = - 0.277-( 0.059/2) log(1/0.035)

Ecell = -0.322v

it can work like Anode


Ecell = E0cell -(0.059/n)log[Tl+/Tl+3]

          =1.25 - (0.059/2) log[0.063/0.74]

          = 1.28v