First slide

Standard EMF of a cell

Question

The standard reduction potentials for the two half-cell reactions are given below :
$\large C{d^{2 + }}_{\left( {aq} \right)} + \,2{e^ - }\, \to \,C{d_{\left( s \right)}};\,{E^0}\, = \, - 0.40V$
$\large A{g^ + }_{\left( {aq} \right)} + \,{e^ - } \to \,A{g_{\left( s \right)}};\,{E^0}\, = \,0.80V$
The standard free energy change for the reaction $\large 2A{g^ + }_{\left( {aq} \right)}\, + \,C{d_{\left( s \right)}}\, \to \,2A{g_{\left( s \right)}} + \,C{d^{2 + }}_{\left( {aq} \right)}$ is given by

Moderate

Solution

ΔG^o = -nFE^o
= - 2 x 96500 x (0.8+0.4) = -231600 j = -231.6 kj

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App