Why is hydrogen sulfide a gas at room temperature but water is a liquid?

Answer 1

The intermolecular forces, namely hydrogen-bonding, in H2O are stronger than in H2S. This is because in H2O the bonds are more ionic and there is a larger partial positive charge on H and partial negative on O, so neighboring H2O molecules can bind to each other and cause a stronger network of bonded molecules, thus requiring more energy (higher temperature) to break these bonds and form a gas (where intermolecular forces no longer act).

Answer 2

Well, honey, it's all about those intermolecular forces. Hydrogen sulfide is a gas at room temperature because its molecules are weakly attracted to each other, allowing them to zip around freely. Water, on the other hand, is a liquid because its molecules are all buddy-buddy with each other, forming strong hydrogen bonds that keep them close together. So, in simpler terms, hydrogen sulfide is a gas because its molecules are like distant acquaintances at a party, while water is a liquid because its molecules are basically holding hands and singing kumbaya.

Answer 3

Hydrogen sulfide (H2S) is a gas at room temperature because its molecules are lighter and have weaker intermolecular forces compared to water (H2O) molecules. In contrast, water is a liquid at room temperature due to its stronger hydrogen bonding, which holds the molecules closer together, increasing its boiling point and keeping it in a liquid state under normal conditions.