Water or vapour ?!
Water or vapour ?
water or vapour ??
Answers:
water ofcorzs !!
VAPOR. Damn.
water
All the same atoms.
Water is the chemical substance with the chemical formula H2O: one molecule of water is composed of two hydrogen atoms covalently bonded to a single oxygen atom. Water is a colorless, tasteless, and odorless liquid at ambient temperature and pressure. It is a very important solvent, capable of dissolving many other chemical substances, such as salts, sugars, acids, alkalis, some gases and many organic molecules.
Water is unusual in that it is a liquid under normal conditions, when relationships between other analogous hydrides of oxygen's column in the periodic table suggest it should be a gas, as is hydrogen sulfide. If the periodic table is examined, it will be noted that the elements surrounding oxygen are nitrogen, fluorine, phosphorus, sulfur and chlorine. All of these elements combine with hydrogen to produce gases at normal temperature and pressure. The reason that oxygen forms a liquid is that it is more electronegative than all of these elements (other than fluorine). Oxygen pulls on electrons much more strongly than hydrogen, leaving a net positive charge on the hydrogen atoms, and a net negative charge on the oxygen atom. The presence of a charge on each of these atoms gives each water molecule a net dipole moment. Electrical attraction between water molecules due to this dipole pulls individual molecules closer together, making it more difficult to separate the molecules and therefore raising the boiling point. This attraction is known as hydrogen bonding.
Water has been referred to as the universal solvent, and is the only real pure substance found naturally on Earth in all three states of matter. It is in dynamic equilibrium between the liquid and solid states at standard temperature and pressure. Water can be described as a polar liquid that dissociates disproportionately into the hydronium ion (H3O+(aq)) and an associated hydroxide ion (OH-(aq)). while vapour is Vapor or vapour is some matter in gaseous state, also found in solid or liquid state at room temperature.
Although vapor and gas are frequently (incorrectly) used interchangeably, vapor refers to a gas phase in a state of equilibrium with identical matter in a liquid or solid state below its boiling point, or at least capable of forming solid or liquid at the temperature of the vapor. The term gas refers to a compressible fluid phase, as in common usage. Fixed gases are gases for which no liquid or solid can form at the temperature of the gas (such as air at typical ambient temperatures). A liquid or solid does not have to boil to release a vapor. The atmospheric boiling point of a liquid is the temperature at which the vapor pressure is equal to one atmosphere (unit). See the article on vapor pressure for more information on this topic.
The vapor pressure is the equilibrium pressure from a liquid (or solid) at a specific temperature. The vapor pressure of a liquid or solid (pure or a mixture) is not affected by the pressure in contact with the liquid or solid.
For two-phase systems (e.g., two liquid phases), the vapor pressure of the system is the sum of the vapor pressures of the two liquids. In the absence of stronger inter-species attractions between like-like or like-unlike molecules, the vapor pressure follows Raoult's Law, or the vapor pressure is equal to the sum of the product of the vapor pressure of the pure compound and its mole fraction in the mixture for all of the constituents.
The constituent atoms or molecules of a vapor possess vibrational, rotational, and translational motion. More information can be found under the entry of the Kinetic theory of gases.
Water. ???