Question

a galvanic cell is set up from a zinc bar weighing 100g and 1 litre of 1M CuSO4 solution. How long the cell would run if it is assumed to deliver a steady current of 1 amp

Answer 1

Hi friend 
Hope this helps you 

The answer is 53.6 hr.,

Answer 2

Hey dear,

● Answer -
t = 53.6 hr

● Explanation -
Moles of zinc reduced
= 100/65
= 1.53 mol

Here, CuSO4 is limiting reagent.
Cu2+ + 2e- ---> Cu

That is to completely dissolve 1 mol of Cu, 2 moles of electrons are required.

Time for which cell runs is -
t = Q / I
t = 2 × 96500 / 1
t = 193000 s
t = 53.61 hrs

Therefore, cell will run for 53.61 hrs.

Hope this helps you...