36. Solution to Chemistry Problem

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• The values ​​of partial pressures of the vapors of the components in the system “chloroform (1 component) – diethyl ether (2 component)” are known for different molar fractions of the second component in the liquid phase. N2(l) 0 0.2 0.4 0.6 0.8 1

р1*10-4, Pa 0.316 .267 0.253 0.220 0.149 0.000

р2*10-4, Pa 0 1.879 2.253 2.479 2.706 3.056

Required:

• plot on graph paper a graph of the partial pressures of the components versus the mole fraction of the second component (Fig. 1)
• Plot the dependence of the total vapor pressure above the solution on the composition (on the same Fig. 1)
• determine whether there are deviations from Raoult's law (positive or negative);
• Calculate the activity coefficients of each component of the solution for the following compositions N2(l)= 0.3; 0.5; 0.7.

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