CHEM 457 – Experimental Physical ChemistryExperiment 04Real Gas Law: Gravimetric Determination of the Second VirialCoefficient of CO2Student Name:_____________________________ Date:____________ Score:_____/ 10 pointsPLEASE SHOW ALL WORK FOR FULL CREDIT.1. What experimental conditions (volume pressure and temperature) are conducive to idealgas behavior? (1 point)2. Define the compression factor (Z). Is Z going to be larger or smaller than 1 for a gas inwhich attractive forces dominate? (2 points)3. A student plots Z-1 versus (1/Vm) based on data collected during an isothermal expansion ofCO2. What would you expect the y-intercept to be and why is this so? (1 point)4. The precision (readability) of your balance is 1 mg this means masses under 0.5 mg cannot bedetected. The volume of the vessel is 0.5 L and temperature is 25 °C. Assuming ideal gas lawconditions what is the maximum pressure in a vessel containing CO2 in which the residualmass cannot be detected? (1 points)5. (A) Calculate the molar volume of CO2 at 25°C and 10 bar by treating it as a van der Waalsgas (a = 3.610 atm L2 mol-2; b = 4.29 × 10-2 L mol-1). (2 points)(B) Calculate the molar volume of CO2 gas at a temperature of 25°C and pressure of 10 barusing the ideal gas law. (2 points)(C) Determine the percent deviation from ideality for the van der Waals gas. (1 point)
