Which of the following processes is a nonspontaneous process?

Question

Which of the following processes is a nonspontaneous process? (A) Dissolution of salt or sugar in water (B) Mixing of different gases through diffusion (C) Precipitation of copper when zinc rod is dipped in aqueous solution of copper sulphate (D) Flow of heat from a cold body to a hot body in contact

Tardigrade Admin · Accepted Answer

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 non-spontaneous process as it requires external work as per Clausius.

Q. Which of the following processes is a nonspontaneous process?

Dissolution of salt or sugar in water

Mixing of different gases through diffusion

Precipitation of copper when zinc rod is dipped in aqueous solution of copper sulphate

Flow of heat from a cold body to a hot body in contact

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 non-spontaneous process as it requires external work as per Clausius.