Which one of the following process is non-spontaneous - Vidyadip

MCQ

Which one of the following process is non-spontaneous

A
Dissolution of $CuS{O_4}$ in water
B
Reaction between ${H_2}$ and ${O_2}$ to form water
C
Water flowing down hill
✓
Flow of electric current from low potential to high potential

✓

Answer

Correct option: D.

Flow of electric current from low potential to high potential

d
The physical or chemical processes which do not proceed by its own in a particular direction and requires outside help is called a non-spontaneous process. Therefore, flow of heat from a cold body to a hot body is a nonspontaneous process as it requires external work as per Clausius

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