Chemistry 2003 JAMB Past Questions - Question 29: When sugar is dissolved in tea, the reaction is always accompanied by

Correct Answer

A

Explanation

When sugar is dissolved in tea, the entropy change is positive. This is because the sugar molecules become more dispersed in the solution, leading to an increase in disorder or randomness, which is characteristic of a positive entropy change.
When sugar dissolves in tea, it is a physical process rather than a chemical reaction. The dissolving of sugar in tea is a dissolution process, which involves the sugar molecules becoming surrounded by water molecules and dispersing throughout the liquid.

The process of dissolving sugar in tea is typically accompanied by an increase in entropy (disorder) rather than a decrease. Entropy is a measure of the randomness or disorder of a system. In this case, as the sugar crystals break down and disperse in the tea, the system becomes more disordered, leading to a positive change in entropy.

Therefore, the correct statement is that the dissolution of sugar in tea is accompanied by a positive entropy change.