Sbistudyसेल की विद्युत वाहक बल की सहायता से समय से साम्य स्थिरांक मान पता है Finding the value of the Equilibrium constant with the help of a cell Electric carrier force
डेनियल सैल में निम्न क्रिया होती हैं
Zn + Cu2+ = Zn2+ + Cu
साम्य अवस्था स्थिरांक (Equilibrium state constant)
Kc = [Zn2+][Cu]/[Zn][Cu2+]
ठोस पदार्थ के लिए
[Cu] = [Zn] = 1 होता हैं।
अतः
Kc = [Zn2+]/[Cu2+]
नेर्नस्ट समीकरण से (from nernst equation)
Ecell = E0cell – (0.059/n) log([Zn2+]/[Cu2+])
अतः
Ecell = E0cell – (0.059/n) log Kc
साम्य अवस्था Ecell = 0
0 = E0cell – (0.059/n) log Kc
(0.059/n) log Kc = E0cell
या
E0cell = (2.303RT/nF)log Kc
0.059 log Kc = n E0cell
log Kc = (n E0cell)/0.059
Kc = एंटीलोग (n E0cell)/0.059
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