The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at 25^@C . The equilibrium constant of the reaction would be
What are galvanic cells ? Explain the woriking of a galvanic cell with a neat sketch taking Denicell cell as example.
(A) : If E^(0) " of " Cu^(2+)//Cu=+0.34V and E^(0) " of "Ag^(+) // Ag = + 0.80 V then galvanic cell constructed from these is Ag//Ag^(+) // // Cu^(2+ ) // Cu (R) : In any galvanic cell the reaction that takes place is a redox reaction Electrode potentials & EMF
What is nernst equation. Calculate the EMF of the galvanic cell construted fro these electrodes. Zn//Zn^(2+) (1.0M)"||"Cu^(2+)(1.0M)//Cu E^(@)Zn^(2+)//Zn= -0.766V, E^(@)Cu^(2+)//Cu= +0.327V
What are the fuel cells ? How are they different from galvanic cells ? Give the construction of H_(2), O_(2) fuel cell ?
If the half cell reaction A to e^(-) to A^(-) has a larger negative potential , it follows that :
In a Galvanic cell, the electrons flow from
(A): In the construction of Galvanic cell, lithium electrode can not be used as cathode (R) : Lithium has the highest negative S.R.P value.
What is a galvanic cell or a valtaic cell ? Give one example.
