Homework 8CBEMS 45C Sp15due Friday, June 5, at the beginning of lecture1. Lifelong Learning: Find an external resource (broadly defined) that could be useful toyou for the remainder of this class or in applying 45C concepts to future study. Thishas to be something OTHER than the textbook. It could be software, videos, texts, oreven a professional/educational society. Write down what the resource is, and how itcould help you in ongoing learning/application of thermodynamics.2. For a binary mixture of n-butane and n-hexane with butane mole fraction xB= 0.7 atT = 450 K and P =500 kPa, answer the following questions:(a) Considering the pure components separately, determine whether you are possiblydealing with a two-phase mixture or not.(b) Assuming there is no change in volume upon mixing of the pure components at thetemperature and pressure of interest, calculate the fugacity of each component.3. Problem 10.1-6 Relative humidity is the ratio of the partial pressure of water in airto the partial pressure of water in air saturated with water at the same temperature,expressed as a percentage:Relative humidity =Partial pressure of water in airPartial pressure of water in air saturated with water at same temperature× 100Among aviators it is more common to express the moisture content of the air by givingthe air temperature and its dew point, that is, the temperature to which the air mustbe cooled for the first drop of water to condense. The following atmospheric conditions1have been reported:Atmospheric pressure = 1.011 barAir temperature = 25.6◦CDew point of air = 20.6◦CWhat is the relative humidity of the air? (see problem 7.12 for the necessary data)Hint: Assume air is made up of N2, O2and water vapor. What is Tcfor O2and N2?Do we need to consider liquid O2and N2at the dew point?4. What is the lowest temperature to which a vapor mixture of 1 mole n-pentane and 2moles n-hexane at 1 bar can be brought without forming liquid? Assume the liquidforms an ideal solution.Use the Antoine equation:ln(Psat[in bar]) = A −BT [in K] + CAntoine coefficientsName A B Cn-pentane 9.2131 2477.07 -39.94n-hexane 9.2164 2697.55