Water vapor [Chemical formula, Physical, Chemical Properties and Reactions]

By: Prof. Dr. Fazal Rehman Shamil | Last updated: February 3, 2024

The chemical formula for water vapor is H2O.

 Properties

 Detail

Reaction with AcidsWater vapor can react with acids
Reaction with AldehydesWater vapor can react with
Reaction with MetalsWater vapor can react with certain
Reaction with OxidizingWater vapor can react with
Reaction with SodiumWater vapor reacts with sodium

Physical properties of water vapor

Boiling PointThe temperature at which water vapor
Condensation PointThe temperature at which water vapor
DensityThe mass of water vapor per unit
Heat of VaporizationThe amount of heat energy required
HygroscopicityThe ability of water vapor to
Specific Heat CapacityThe amount of heat energy required
Vapor PressureThe pressure exerted by water vapor

Reactions of water vapor with Alkali Metal

Alkali MetalReaction with Water Vapor
Lithium (Li)2 Li + H2O  react and change into  2 LiOH + H2
Sodium (Na)2 Na + H2O  react and change into  2 NaOH + H2
Potassium (K)2 K + 2 H2O  react and change into  2 KOH + H2
Rubidium (Rb)2 Rb + 2 H2O  react and change into  2 RbOH + H2
Cesium (Cs)2 Cs + 2 H2O  react and change into  2 CsOH + H2
Francium (Fr)2 Fr + 2 H2O  react and change into  2 FrOH + H2

Reactions of water vapor with Alkaline Earth Metal

Alkaline Earth MetalReaction with Water Vapor
Beryllium (Be)No reaction occur hence no product  formed
Magnesium (Mg)No reaction occur hence no product  formed
Calcium (Ca)No reaction occur hence no product  formed
Strontium (Sr)No reaction occur hence no product  formed
Barium (Ba)No reaction occur hence no product  formed
Radium (Ra)No reaction occur hence no product  formed

Reactions of water vapor with Non-Transition Metal

Non-Transition MetalReaction with Water Vapor
Aluminum (Al)2 Al + 3 H2O  react and change into  Al2O3 + 3 H2
Gallium (Ga)2 Ga + 3 H2O  react and change into  Ga2O3 + 3 H2
Indium (In)2 In + 3 H2O  react and change into  In2O3 + 3 H2
Tin (Sn)Sn + 2 H2O  react and change into  SnO2 + 2 H2
Lead (Pb)Pb + H2O  react and change into  PbO + H2
Antimony (Sb) performed no reaction with water vapour
Bismuth (Bi) performed no reaction with water vapour
Arsenic (As) performed no reaction with water vapour

Reactions of water vapor with Non-Metal

Non-MetalReaction with Water Vapor
Hydrogen (H2)No reaction occur hence no product  formed
Nitrogen (N2)No reaction occur hence no product  formed
Oxygen (O2)No reaction occur hence no product  formed
Fluorine (F2)No reaction occur hence no product  formed
Chlorine (Cl2)No reaction occur hence no product  formed
Bromine (Br2)No reaction occur hence no product  formed
Iodine (I2)No reaction occur hence no product  formed
Carbon (C)C + H2O  react and change into  CO + H2
Sulfur (S8) performed no reaction with water vapour
Phosphorus (P4) performed no reaction with water vapour

Reactions of water vapor with Metalloid

MetalloidReaction with Water Vapor
Boron (B)B + 3 H2O  react and change into  B(OH)3 + 3/2 H2
Silicon (Si)No reaction occur hence no product  formed
Germanium (Ge)No reaction occur hence no product  formed
Arsenic (As) performed no reaction with water vapour
Antimony (Sb) performed no reaction with water vapour
Tellurium (Te) performed no reaction with water vapour