What is the primary driving force behind the deliquescence process

Source: JAMB · 2023

What is the primary driving force behind the deliquescence process

  1. Decrease in temperature
  2. Increase in pressure
  3. Absorption of water vapor from the air ✓
  4. Addition of heat
Explanation

Deliquescence occurs when a solid absorbs so much water from humid air that it dissolves into a liquid solution. The substance actively pulls moisture from the surrounding atmosphere.

Compounds like calcium chloride and sodium hydroxide are deliquescent. They have such a strong attraction to water molecules that they absorb moisture until they become liquid droplets.

This process happens spontaneously in humid conditions. The driving force is the chemical attraction between the solid compound and water vapor in the air.

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