It's the gas (carbon dioxide) escaping from the container under pressure.
A person will hear a hissing bottle when they open a Coke bottle because the drink is carbonated. This is true of all carbonated beverages and it generally means that they are fresh.
A water bottle has air pressure because the air inside is compressed due to the volume of the bottle decreasing as you drink from it. When you open the bottle cap, the compressed air rushes out quickly, causing a hissing sound as it equalizes with the surrounding air pressure.
The hissing sound that pop makes is primarily due to the rapid release of carbon dioxide gas when the can or bottle is opened. When the seal is broken, the pressure inside is released, allowing the gas that was dissolved in the liquid to escape quickly. This release creates bubbles that burst at the surface, producing the characteristic hissing sound. Additionally, the sound can vary depending on the amount of carbonation and the type of container.
A ferret that make a hissing sound means they are annoyed or irritated
To make a humming or hissing sound, like an arrow or ball flying through the air; to fly or move swiftly with a sharp hissing or whistling sound., A hissing and humming sound.
Geese make a hissing sound.
it makes hissing vocalizations
Snakes are reputed to make a hissing sound.
The hissing sound of the blue flame on a Bunsen burner is due to the rapid movement of gas molecules as they mix with air and combust. This turbulence creates vibrations and generates sound waves, resulting in the hissing noise.
Could be a "hissing" sound
the air is depleting from your lungs
they make a hissing sound