Assuming Raoult’s law to apply to the system n-pentane(1)/n-heptane(2). a. What are the values of x1 and y1 at t = 55°C and P = 0.5 (P1sat+P2sat)? b. For t = 55°C, plot Pxy diagram. c. Find the temperature and vapor compositions of this system at P = 135 kPa if a liquid mixture contains 63% by mole of n-pentane.

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