SYSTEM are known as properties.Eg. Pressure, volume, TEMPERATURE, etc.There are two types of properties:Extensive propertyThose properties which depend on mass are known as extensive properties.Examples are volume, energy, enthalpy, ENTROPY etc.Intensive propertyThose properties which don't depend on mass are known as intensive properties.Examples are pressure, temperature, density, viscosity. The ratio of two extensive properties is an intensive property.Specific properties are intensive properties. For example specific volume, specific energy, specific heat etc.If a property divides with space then it is extensive property OTHERWISE the property will be intensive.Extensive PropertiesVVolumeUEnergyHEnthalpySEntropyIntensive PropertiesTTemperaturePPressureρDensityvSpecific Volume, V/muSpecific Internal Energy, u = U/mhSpecific Enthalpy, h = H/msSpecific Entropy, s = S/mxQualityCPSpecific heat at CONSTANT pressurecvSpecific heat at constant volumeβIsothermal CompressibilityκIsobaric Compressibility