Initials: Part 4: Multiple Choice Questions (3 points per question, 12 points total) For a gas phase cracking reaction A + 3B+C at 300 C, the Gibbs energy of reaction at that temperature is -2.7kJ/mol. 1. Giving the previous information. Which of the following statements is correct? Select as many as necessary. a. The mentioned cracking reaction is exothermic. b. The mentioned cracking reaction is endothermic. c. The mentioned cracking reaction is feasible (tends towards products). d. The mentioned cracking reaction is non-feasible (tends towards reactants). e. None of the above statements are correct. 2. For the cracking reaction mentioned previously, the Gibbs of formation of substances A and Care, at standard pressure and 300 C. respectively. -2.4 and -1.4 kl/mol. What is the heat of formation of component B? a. 1.23 kJ/mol b. -1.23 kJ/mol c. 3.7 kJ/mol d. -3.7 kJ/mol e. 1.1 kJ/mol f. -1.1 kJ/mol 8. None of the above 3. At 65 C, the solution of 0.52 mol% toluene in ethanol has activity coefficients for both ethanol and toluene of 1.5, i.e. Yethanol = Yestuene = 1.5. Given this information, which of the following statements is/are correct? Select as many as necessary. a. At 65 C, the 0.52 mol% toluene solution in ethanol is an ideal solution. b. At 65 C, the 0.52 mol% toluene solution in ethanol has an azeotrope. c. At 65 C, the vapor pressure of ethanol is equal to the vapor pressure of toluene. d. None of the above statements are correct. 4. For an isolated liquid-vapor system in thermal and mechanical equilibrium, the fugacity coefficient of the vapor phase is 0.445, while the fugacity coefficient of the liquid phase is 0.550. For this system: a. The system is also in chemical equilibrium. b. Mass will be transferred from the vapor to the liquid phase. c Mass will be transferred from the liquid to the vapor phase. d. The vapor is an ideal gas. e. Not enough information is provided to determine chemical equilibrium and mass transfer behavior