local_offer Engineering Physics Chemistry Life pressure temperature Alcohol Alcoholmeters Clausius-Clapeyron equation Mendeleev-Clapeyron equation Mendeleyev Thermodynamics alcohol solution altitude atmospheric pressure barometric pressure boiling boiling point concentration contraction density density of the alcohol ethanol ethyl alcohol glue height mass mass concentration mass fraction percent by volume percentage by weight sea level solute solution solvent spirit strength vodka volume concentration volume fraction volume percent