Lab 6: Molar Mass of a Volatile Liquid: Calculate the molar mass of your unknown for each trial, and report the average. Use the accepted molar mass for your UNKNOWN to calculate percentage error of your average molar mass.  Accepted molar mass (g/mol)​84.2 Atmospheric pressure (torr)​769.9   Mass of dry flask, foil, and boiling chips (g)​: trial 1 :  96.954​, trial 2: 96.875   Temperature of water bath (°C)​: trial1: 99.9​, trial 2: 100.4   Mass of flask, foil, boiling chips, and condensed vapor (g)​ :   trial 1: 97.389​  ,    trial 2: 97.304   Volume of flask (mL)​: trial1: 163​ , trial 2 : 158

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Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.