JEE Main Chemistry question

**Statement 1:** An electrochemical cell can be set up only if the redox reaction is spontaneous.

**Statement 2:** A reaction is spontaneous if the free energy change is negative.

(A)Statement 1 is True, Statement 2 is True; Statement 2 is a correct explanation for Statement 1
(B)Statement 1 is True, Statement 2 is True; Statement 2 is not a correct explanation for Statement 1Correct
(C)Statement 1 is True, Statement 2 is False
(D)Statement 1 is False, Statement 2 is True

Answer: (B)

Solution

Statement 1 is true: a galvanic cell only does useful work spontaneously when for its redox reaction (equivalently , since ). Statement 2 is also true in general ( is the universal criterion for spontaneity),

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-143690