Answer to Question #274681 in Physical Chemistry for Gelo

Question

A current passes through a 2.5 oh resistor of a galvanic cell for 2 hrs. The galvanic cell is made using

H2SO3 and VO2+ . A 150 grams of H2SO3 and 305 grams of VO2+ is dissolve with H2O to make the

electrolyte solution for the galvanic cell. The volume of the solutions made is 0.012m3

. Determine the

following:

a.) The reaction take place in the anode and cathode compartment. The overall redox reaction

and cell notation for VO2+ and H2SO3.

b.) Concentration of VO2

+

, VO2+ and SO4

2-

from the dissolution of H2SO3 and VO2+

c.) Standard Cell Potential, E⁰

d.) If the condition take place at a temperature of 425K, what is the

d1) Cell potential, E

d2) current that passes through 2.5ohm, I

d3) amount of electricity, Q

d4) energy, Joules

d5) Power, watts

e.) If the condition is at a Temperature of 250C, calculate

e1) Cell potential, E

e2) current that passes through 2.5ohm, I

e3) amount of electricity, Q

e4) energy, Joules

e5) Power, watts

Answer 1

A Galvanic cell converts chemical energy into electrical energy. An electrolytic cell converts electrical energy into chemical energy.The redox reaction is not spontaneous and electrical energy has to be supplied to initiate the reaction.