What are the physical properties of hydrogen sulfide?

What are the physical properties of hydrogen sulfide?

Hydrogen sulfide is a heavier-than-air, colorless gas with a sweetish taste and characteristic odor of rotten eggs (HSDB 2013). The odor threshold for hydrogen sulfide is variable and various ranges have been reported.

What are the properties of hydrogen sulphide H2S?

Physical Properties for Hydrogen Sulfide

Why hydrogen sulphide is gas but water is liquid?

Hydrogen sulphide exists as a gas at 298 K temperature. Water exists as a liquid however hydrogen sulphide exists as a gas because there is strong hydrogen bonding between the water molecules due to high electronegativity of oxygen atom.

Why water is a liquid and H2S is a gas though oxygen and sulphur belong to the same group?

The basic reason is Hydrogen Bonding, which is present in water and not in hydrogen sulfide. The reason why hydrogen bonding is strong in water is that oxygen is more electronegative than sulfur, so, oxygen pulls hydrogen closer to itself as compared to sulfur. Hence, water is a liquid, and hydrogen sulfide a gas.

Is hydrogen sulphide heavier than air?

It is flammable, colorless and noticeable by its rotten egg odor. Hydrogen sulfide is heavier than air, so it stays low to the ground. People can smell the specific odor at low concentrations in air ranging from 0.0005 to 0.3 parts per million (ppm).

How can you tell if gas is hydrogen sulphide?

Unlike other toxic gases, hydrogen sulphide can be identified by an odor. That smell, distinct as it is, isn’t very reliable when it comes to detecting leaks. Due to a process known as olfactory desensitization, high concentrations of H2S gas can cause your sense of smell to disappear.

What is the smell of hydrogen sulphide?

What is hydrogen sulfide? Hydrogen sulfide is a colorless, flammable gas that smells like rotten eggs at low concentration levels in the air. It is commonly known as sewer gas, stink damp, and manure gas. At high concentration levels, it has a sickening sweet odor.

What happens when hydrogen sulphide gas burns in air?

Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

Why hydrogen sulphide is a gas at room temperature?

Whereas, Sulphur is less electronegative than oxygen, and the S-H bond is much less polar than the O-H bond. Hence, there is no hydrogen bonding in hydrogen sulphide, and it exists as a gas. H2S is a gas and water is liquid at room temperature.

Why is water a liquid and hydrogen sulphide a gas at room temperature?

Water is a liquid while hydrogen sulphide is a gas because the hydrogen bonding in water causes the water molecules to be associated with each other due to intermolecular forces of attraction.

What is a liquid while hydrogen sulphide is a gas?

Water is a liquid while hydrogen sulphide is a gas because water molecules associate through hydrogen bonding.

Is hydrogen sulphide a gas or liquid?

gas
Hydrogen sulfide is a flammable, colorless gas with a characteristic odor of rotten eggs. It is commonly known as hydrosulfuric acid, sewer gas, and stink damp. People can smell it at low levels.

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