Give 5 example liquid to gas? and 5 example solid to gas?
The Correct Answer and Explanation is:
Liquid to Gas:
- Water boiling to steam: When water reaches its boiling point at 100°C, it transitions from liquid to gas, forming steam.
- Alcohol evaporating: Ethanol (alcohol) evaporates at room temperature, changing from liquid to gas.
- Gasoline evaporating: Gasoline, when exposed to the air, evaporates into vapors.
- Acetone evaporating: Acetone, used in nail polish remover, readily changes from liquid to gas at room temperature.
- Mercury evaporation: Mercury, a liquid metal, evaporates at high temperatures, turning into mercury vapor.
Solid to Gas:
- Dry ice sublimating: Dry ice (solid CO₂) sublimates directly into carbon dioxide gas without passing through a liquid phase.
- Iodine sublimating: Iodine crystals, when heated, sublimate into a violet gas.
- Naphthalene sublimating: Naphthalene, commonly found in mothballs, sublimates directly into vapor at room temperature.
- Snow turning into water vapor: Snow or ice can sublimate directly into water vapor in conditions like low pressure or intense heat.
- Camphor sublimating: Camphor, a white solid, sublimates into a gas when heated gently.
Explanation:
In both liquid-to-gas and solid-to-gas transitions, the molecules move from a more structured form (liquid or solid) to a less ordered form (gas), but they do so through different processes. The liquid-to-gas transition typically happens through evaporation or boiling. Evaporation occurs at all temperatures below the boiling point, while boiling happens at a specific temperature (like water boiling at 100°C).
The solid-to-gas transition occurs through a process called sublimation, where a solid skips the liquid phase and directly transforms into a gas. This happens when the molecules in the solid gain enough energy to break free from their rigid structure, usually under conditions of low pressure or high temperature.
In all cases, these transitions involve an increase in the energy of the molecules, allowing them to move freely and become gas particles.
