1. Tardigrade
  2. Question
  3. Chemistry
  4. The (( partial E / partial T )) P of different types of half cells are as follows: A B C D 1 × 10-4 2× 10-4 0.1 × 10-4 0.2 × 10-4 (Where E is the electromotive force) Which of the above half cells would be preferred to be used as reference electrode?

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Q. The $\left(\frac{\partial E }{\partial T }\right)_{ P }$ of different types of half cells are as follows :
A B C D
$1 \times 10^{-4}$ $2\times 10^{-4}$ $0.1 \times 10^{-4}$ $0.2 \times 10^{-4}$

(Where $E$ is the electromotive force)
Which of the above half cells would be preferred to be used as reference electrode?

JEE MainJEE Main 2022Electrochemistry

Solution:

A cell with less variation in EMF with temperature is preferred as reference electrode because it can be used for wider range of temperature without much derivation from standard value so a cell with less $\left(\frac{\partial E }{\partial T }\right)_{ P }$ is preferred.