Under what conditions ECell -0 or -rG -0 -

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Physics

Resistance

Under what co...

Question

Under what conditions $E_{C e l l} = 0 o r Λ_{r} G = 0 ?$

Open in App

Solution

$E_{C e l l}$ = Reduction potential of cathode – Reduction potential of anode

At equilibrium
Reduction potential of cathode – Reduction potential of anode = 0

Thus, $E_{C e l l}$ = 0

Therefore, according to the formula,
$Λ_{r} G = - n F E_{C e l l}$

$Λ_{r} G = 0$ , at equilibrium.

Hence under equilibrium conditions,
$E_{C e l l} = 0 o r Λ_{r} G = 0$

Suggest Corrections

Similar questions

For the process to occur under adiabatic conditions, the correct condition is:
(i) $Δ T = 0$
(ii) $Δ p = 0$
(iii) q = 0
(iv) w = 0

Q. 24. When equilibrium is established in a galvanic or electrochemical cell Ecell=0, Why?

The concentration of potassium ions inside a biological cell is at least twenty times higher than the outside. The resulting potential difference across the cell is important in several processes such as transmission of nerve impulses and maintaining the ion balance. A simple model for such a concentration cell involving a metal M is:
$M (s) | M^{+}$ (aq;0.05 molar)|| $M^{+}$ (aq;1 molar)|M(s)
For the above electrolytic cell the magnitude of the cell potential $| E_{c e l l} | = 70 m V$ .