Question

A Cell reaction is given by A+a^ n+ A^ n+ gives A^n+ +B. Calculate the number of electrons 'n' involved in cell reavtion.Given that concentration ratio of [A^n+] to [B^n+] is 0.1 and cell shows an emf of 1.13006V at 30°C and 1.1305 V at 40°C​

Answer 1

Explanation:

E_(cell) = E_(cell)^(@) - (0.0591)/(2) log Q

, <br> were

Q =

reaction quotient. <br> At equilibrium <br>

E_(cell) = 0, Q = K

<br>

E_(cell) = 0.295 -0.0295 log K

<br>

log K = 10

<br>

:. K = 10^(-10)