हिंदी
Maharashtra State BoardHSC Science (General) 12th Standard Board Exam
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MCQ ऑनलाइन अभ्यास परीक्षा७३
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अवधारणा स्पष्टीकरण और वीडियो११८२
समय सारणी३५
पाठ्यक्रम

Thermodynamics of Galvanic Cells

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Estimated time: 1 minutes
Maharashtra State Board: Class 12

Key Points: Thermodynamics of Galvanic Cells

1. Gibbs Energy Relation
ΔG = −nFEcell

2. Relation with Equilibrium Constant
E°cell \[=\frac{0.0592}{n}\log_{10}K  at   25^{\circ}C\]

Related QuestionsVIEW ALL [9]

Derive the relationship between Gibbs energy of cell reaction and cell potential.

Derive the relationship between standard cell potential and equilibrium constant of cell reaction.

Equilibrium constant of the reaction, \[\ce{2Cu^{\oplus}_{(aq)} -> Cu^{2\oplus}_{(aq)} + Cu_{(s)}}\] is 1.2 × 106. What is the standard potential of the cell in which the reaction takes place?

Calculate Standard cell potential for a cell having following reaction, \[\ce{2Al(s) + 3Ni^{2+} -> 2Al^{3+} + 3Ni(s)}\]

`("E"_"Ni"^circ = - 0.25 "V" and "E"_"Al"^circ = 1.66 "V")`

E0cell (Standard Potential of cell) for the following cell reaction is ______.

\[\ce{Cd_{(s)} + Sn^{2+}_{(aq)}-> Cd^{2+}_{(aq)} + Sn_{(s)}}\]

(E0Cd = − 0.403 V and E0Sn = − 0.136 V)

Answer the following in brief.

Using the relationship ΔG° of cell reaction and the standard potential associated with it, how will you show that the electrical potential is an intensive property?

Calculate standard Gibbs energy change at 25°C for the cell reaction.

\[\ce{Cd_{(s)} + Sn^{2+}_{ (aq)} -> Cd^{2+}_{ (aq)} + Sn_{(s)}}\]

\[\ce{E^0_{cd}}\] = –0.403 V, \[\ce{E^0_{Sn}}\] = –0.136 V

What is the mass of copper metal produced at cathode during the passage of 2.03 A current through the CuSO4 solution for 1 hour. Molar mass of Cu = 63.5 g mol–1.

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