Question

freezing point? 2.9) Write the names and formulae of the monomers used in the preparation of terylene. 10) Write the cell reaction and calculate the EMF at the following cell at 25°C.​

Answer 1

we have

2Cr→2Cr3++6e−

3Co2++6e−→3Co

Ecell=Ecell0−60.0591log(Co2+)3(Cr3+)2

Ecell=0.46−60.0591log(0.012)3(0.0065)2

Ecell = 0.46−0.0137

Ecell = 0.4463V

ΔG = −nFEcell

ΔG = −6∗96500∗0.4463

ΔG = −258.4KJ

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