The standard potential of a Daniel cell is +1.10 V and the equilibrium constant for the cell reaction is 1.5… · ABC26PH0690
Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Nernst Cells · Exam: JAM 2001-2022 · Marks: 2 · Difficulty: Medium
The standard potential of a Daniel cell is $+1.10\,\mathrm{V}$ and the equilibrium constant for the cell reaction is $1.5 \times 10^{37}$. It can be concluded that
(a)Zinc oxidises copper
(b)Displacement of copper by zinc goes to near completion
(c)Copper oxidises zinc
(d)Displacement of zinc by copper goes to completion.
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
K = 1.5×10³⁷ means Zn + Cu²⁺ → Zn²⁺ + Cu goes essentially to completion (b).