Consider the voltaic cellzn(s) + cu{2+}(> zn{2+}(aq)+cu(s){}=chargeunder standard conditions, what is the maximum electrical work, in joules that can accomplish if 60 g of copper is plated out?

Max. work done in 60 g of copper plated out is 200472.14 J

Explanation:

Given cell reaction is:

Standard reduction potential of Zn electrode () is 0.763 V.

Standard reduction potential of Cu electrode () is -0.337 V.

Copper acts as cathode and Zinc acts as anode.

Cell potential (E) = E° cathode - E° anode

                           = 0.763 - (-0.337)

                           = 1.10 V

formula for the work done is as follows:

Here, n is no. of electron involved in the reaction.

F(Faraday's constant) = 96500

In the given reaction, n = 2

Therefore, 212300 J work is done by reducting 1 mol of copper.

Copper given is 60 g.

Molecular mass of copper is 63.54 g/mol.

Max. work done in 60 g of copper plated out is:

the answer is 1 i believe

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.