
Grade 12th passPhysical Chemistry
H2+1/2o2-H2o BE=H-H=x1 B.Eo=o=×2 BE O-H=×3. heat of vapourisation of water=×4 heat of formation of liquid water is
H2+1/2o2-H2o BE=H-H=x1 B.Eo=o=×2 BE O-H=×3. heat of vapourisation of water=×4 heat of formation of liquid water is





