Gases are neither solid nor liquid at ordinary temperatures and are usually contained under what condition?

Gases are neither solid nor liquid at ordinary temperatures and are usually contained under what condition?

• A. Under water
• B. Under pressure
• C. In air
• D. In a vacuum

Answer: (B)

Gases at ordinary temperatures are kept in a defined space by applying external pressure. Because gases readily expand to fill the available volume, they must be contained in a vessel that can withstand the internal pressure and keep the gas from escaping. This is why storage and containment rely on pressure inside the container—not on being submerged, merely existing in ambient air, or being in a vacuum. Submerging a container, or the surrounding environment itself, doesn’t fundamentally confine the gas; the key is maintaining a controlled pressure inside the container, which is how gases are effectively stored and handled.

Gases at ordinary temperatures are kept in a defined space by applying external pressure. Because gases readily expand to fill the available volume, they must be contained in a vessel that can withstand the internal pressure and keep the gas from escaping. This is why storage and containment rely on pressure inside the container—not on being submerged, merely existing in ambient air, or being in a vacuum. Submerging a container, or the surrounding environment itself, doesn’t fundamentally confine the gas; the key is maintaining a controlled pressure inside the container, which is how gases are effectively stored and handled.