Lab Exercise for Chemistry Course: Solving Equations and Applying Equations of State - Pro, Lab Reports of Chemistry

Download Lab Exercise for Chemistry Course: Solving Equations and Applying Equations of State - Pro and more Lab Reports Chemistry in PDF only on Docsity! CHEG 1810 Lab 12 March 31 – April 2, 2009 Problem 1: Use the Symbolic / Variable / Solve process to first eliminate x1 and then x2 from the following equations to finally solve for x3. Then back substitute to find values for x1 and x2. 1 2 3 1 2 3 1 2 3 5 20 2 3 5 4 7 x x x x x x x x               Problem 2: The Antoine equation is used to predict the vapor pressure of a compound as a function of temperature. The vapor pressure of benzene is given by: ln( ) B P A T C    A = 13.7819 B = 2726.81 C=217.572 with P in kPa and T in ˚C Using the “root” procedure, find the temperature at which P = 200 kPa Problem 3: The Redlich-Kwong equation of state is a modification of the ideal gas law to predict the pressure – volume- temperature relationship of some gases. The equation is: 2 2 ( ) ( ) 1 ( ) 0.4278 0.08664 c cr c c r c R T a T P V b V V b R T a T PT R T b P T T T            