a)
Total vapour pressure will be sum of two vapour pressures,
We have obtained P in terms of xA
b)
In vapour Phase, the Mole fraction is given as,
Again putting (3) in the below equation,
we will obtain,
Thus, we have obtained P in terms of yA
(c)
From (2), we have,
For this part, for our convenience, we will use xA = x, PA* =a and PB* = b
Thus, we will have,
For maximum, we will differentiate the above equation with respect to x and equate it to zero. Thus, we will have,
Assuming 'a' and 'b' are different, we have,
Now back substituting, xA = x, PA* =a and PB* = b, we have,
Thus, shown.
4. Two liquids, A and B, obey Raoul's law at all concentration. That is PA =...
4. Two liquids, A and B, obey Raoul's law at all concentration. That is PA = IAP and Pa rpP where r, is the mole fraction of species i in the liquid mixture, P is the partial vapor pressure of species i in the mixture and P is the vapor pressure of pure i 1 (a) [5 points] Express the total vapor pressure as a function of rA (b) [5 points] Express the total vapor pressure as a function of...
Part A Two liquids, labeled A and B, form an ideal mixture with total vapor pressure P = 324.4 torr at a certain composition. At the same temperature, pure liquid A has a vapor pressure of 230 torr, while pure liquid B has a vapor pressure of 380 torr. What is the mole fraction XA of liquid A in this mixture. O 0.183 O 0.420 0.556 O 0.037 0.371
1) A and B are volatile liquids. In the figure below, the partial pressure of A and B in a liquid solution of these two substances (at T = 40.°C) is plotted against Xx, the mole fraction of A in the liquid solution. 400. P (tor) Pa 300 200 100 pa 0.0 0.2 0.4 0.8 1.0 0.6 mole fraction A a) Do A and B form an ideal liquid solution (yes/no)? [4 points) b) What is the value for paº,...
1. Saturate vapor pressure of benzene and toluene are 9958 Pa and 2973 Pa, respectively. If we mix benzene and toluene of the same mass, estimate the partial pressure of benzene and toluene and the total pressure of the vapor above the liquid. 2. Liquid A and liquid B form an ideal solution when they are mixed. There is a cylinder filled with a gaseous mixture in which the mole fraction of A is 0.4 and sealed by piston. If...
At 350K, pure toluene and hexane have vapor pressures of 3.57 x 10^4 Pa and 1.30 x 10^5 Pa respectively. a) Calculate the mole fraction of hexane in the liquid mixture that boils at 350 K at a pressure of 1 atm. b) Calculate the mole fraction of hexane in the vapor that is in equilibrium with the liquid part (a). I have looked up the answer and can follow, but I do not understand how to determine the value...
urgent 1) A and B are volatile liquids. In the figure below, the partial pressure of A and B in a liquid solution of these two substances (at T = 40.°C) is plotted against XX, the mole fraction of A in the liquid solution. 400 I p(tore) 300 200 100 0 0.0 0.2 04 0.8 1.0 0.6 mole fraction A a) Do A and B form an ideal liquid solution (yes/no)? [4 points) b) What is the value for psº,...
and B are volatile liquids. In the figure below, the partial pressure of A and B in a liquid solution of these two substances (at T = 40.°C) is plotted against XX, the mole fraction of A in the liquid solution 400. p(tor) Ps 300. 200. 100. 0. 0.0 0.2 04 1.0 0.6 0.8 mole fraction A a) Do A and B form an ideal liquid solution (yes/no)? [4 points) b) What is the value for peº, the vapor pressure...
9.9 Table 9.9 lists measured values of gas-phase composition and total pressure for the binary two-phase methanol-benzene system at constant temperature and varied liquid-phase compo- sition. XA is the mole fraction of methanol in the liquid mixture, and ya is the mole fraction of methanol in the equilibrated gas phase. (a) For each of the 16 different liquid-phase compositions, tabulate the pyrtial pressures of A and B in the equilibrated gas phase. (b) Plot PA and Ps versus xA on...
Part 2. Short answer questions. 1) A and B are volatile liquids. In the figure below, the partial pressure of A and B in a liquid solution of these two substances (at T = 40.°C) is plotted against XA, the mole fraction of A in the liquid solution. 400 p(tor) 300 200. 100. PA 0. 0.0 0.2 0.4 0.8 1.0 0.6 mole fraction A a) Do A and B form an ideal liquid solution (yes/no)? [4 points] b) What is...
Part 2. Short answer questions. 1) A and B are volatile liquids. In the figure below, the partial pressure of A and B in a liquid solution of these two substances (at T = 40.°C) is plotted against XA, the mole fraction of A in the liquid solution. 400. P(tor) 300 200 100. 0. 0.0 0.2 0.4 0.8 0.6 mole fraction A 1.0 a) Do A and B form an ideal liquid solution (yes/no)? [4 points) b) What is the...