4. The apparatus shown here is used to measure the vapor pressure of ethylene diamine. Liquid Vapor Constant temperature bath 160 The system is loaded with pure ethylene diamine and the bath is adjusted to each of several known temperatures. The following readings are taken on a day when the atmospheric pressure is 758.9 mm Hg: Mercury Level T("C) Right Arm (mm) Left Arm (mm) 42.7 138 862 840 182 818 787 738 677 617 Use MS Excel to solve to a. Calculate pfor ethylene diamine at each temperature. b. Create a semilog plot of pversus 1/T to estimate the normal boiling point and the heat of vaporization of ethylene diamine. c. Does the Clausius Clapeyron equation appear to be justified for ethylene diamine in the temperature range covered by the data? Explain. 58.9 68.3 77.9 886 98.3 105.8 213 262 323 383