Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas NEET2020ChemistryElectrochemistryPractice

For the following cell, Z n ( s ) | Z n S O 4 ( a q ) | | C u S O 4 ( a q ) | C u ( s ) when the concentration of Z n 2 + is 10 times the concentration of C u 2 + , the expression for Δ G (in J m o l - 1 ) is [F is Faraday constant; R is gas constant; T is temperature; E°(cell) = 1.1 V]

Options

  1. A2.303 RT – 2.2 F
  2. B– 2.2 F
  3. C2.303 RT + 1.1 F
  4. D1.1 F

Correct answer

A. 2.303 RT – 2.2 F

Step-by-step solution

Δ G = Δ G ° + 2.303 R T l o g 10 Q ; Q = [ Z n 2 + ] [ C u 2 - ] = - 2 F ( 1.1 ) + 2.303 R T l o g 10 10 = 2.303 R T - 2.2 F

Practice Electrochemistry on Quantrex Academy →

More from Electrochemistry

Calculate the conductivity of 0.025 M BaCl ₂ solution if the molar conductivity of salt at 25^ C is 325 ⁻¹ cm ^2 mol ⁻¹ . 2026Calculate the equilibrium constant at 25 ^ C for the cell reaction, Ni(s) + Cu ²⁺(1 M ) Ni ²⁺(1 M ) + Cu(s) if E^ _ cell is 0.592 V . 2026Calculate the time required in second to deposit 5.85 g Ni from NiCl ₂ solution by passing 10 A current (molar mass of Ni = 58.5 g mol ⁻¹ ) 2026Which of the following cell reactions is exhibited by fuel cell? 2026Which of the following types of cells is used for electroplating? 2026Which of the following acts as a cathode in a dry cell? 2026What is the Standard cell potential of a cell constituted by two electrodes, A (E^0_ A ^+/ A = 0.30 V ) and B (E^0_ B ^+/ B = +0.42 V ) ? 2026How long (in minutes) must a 2 A current be passed through AgNO ₃ solution to deposit 5.4 g Ag ? [Molar mass of Ag = 108 g mol ⁻¹ ] 2026 Full Electrochemistry list All NTA Abhyas NEET PYQs