Volátil

The video tutorial explains the concept of substance transformation, focusing on volatility and vaporization. It highlights how certain substances, typically liquids, can easily become vapor at normal temperature and pressure. The tutorial also covers how some solids, like iodine, can directly turn into vapor without passing through a liquid phase.

What is a key characteristic of a substance that can transform into steam under normal conditions?

• It can easily become steam.

• It remains solid at all times.

• It requires high pressure to change.

• It never changes state.

Which of the following is true about the term 'volatile'?

• It usually refers to liquids.

• It is used exclusively for solids.

• It only applies to gases.

• It is unrelated to temperature.

Which solid is mentioned as being volatile?

• Iron

• Salt

• Iodine

• Sugar

What is the process called when a solid turns directly into vapor?

• Freezing

• Sublimation

• Evaporation

• Condensation

Which of the following does not occur during the direct transition from solid to vapor?

• The substance turns into vapor.

• The process is known as sublimation.

• The substance becomes liquid first.

• The substance skips the liquid phase.