electrochemistry

Question 1

what is a galvanic cell?

Answer 1

a cell which converts chemical energy to electrical energy is called galvanic cell

Question 2

what is electrode potential

Answer 2

a potential diff is developed btw the electron and the electrolyte which is called electrode potential

Question 3

what is standard electrode potential

Answer 3

when the concentration of all the species involved in a half cell is unity then the electrode potential is called standard electrode potential

Question 4

write the three different formulas of delta G

Answer 4

1. = -nFEcell
   2.=0.059/n log kc
   3.-2.303Rt logKc

Question 5

what is conductance?
SI unit ?

Answer 5

inverse of resistance r is called conductance (G)
SI unit siemens

Question 6

state kohlrausch’s law

Answer 6

limiting molar conductivity of an electrolyte can be represented by the sum of individual contribution of the anion and cation of the electrolyte.

Question 7

what is overpotential?

Answer 7

diff btw the theoretical cell voltage and the actual voltage that is necessary to cause electrolysis.