Chemistry · Electrochemical cells: Electrolytic and Galvanic cells, different types of electrodes, electrode potentials including standard electrode potential, half-cell and cell reactions
Which of the following statement (s) differentiate between electrochemical cell
Which of the following statement (s) differentiate between electrochemical cell and electrolytic cell? This question has multiple correct options
- A. Spontaneous or non-spontaneous nature of the chemical process.
- B. Chemical reactions occurring at the electrodes
- C. Positive and negative nature of anode
- D. Dependence on Faraday's law
Step-by-step solution
In an electrochemical (galvanic) cell, the chemical process is spontaneous, producing electrical energy. In an electrolytic cell, the process is non-spontaneous and requires external electrical energy to drive the reaction. This fundamental difference distinguishes the two types of cells. Other options: B (chemical reactions at electrodes) occurs in both; C (sign of anode) also differentiates, but the spontaneous/non-spontaneous nature is the primary characteristic; D (Faraday's law) applies to both.
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