Biodiesel from a palm oil has an approximate formula of CxHyOz. Excess air is supplied at 30°C, 100kPa and 85%RH. The exhaust gas leaves at 250°C and 750 mm Hg with a complete analysis of 12.08% CO2, 0.25% CO, 0.55% H2, 2.12% O2, 71.17% N2 and the rest is H2O. Find a) formula of biodiesel (C19H34O2) b) Equivalence Ratio (0.91)

Biodiesel from a palm oil has an approximate formula of CxHyOz. Excess airis supplied at 30°C, 100kPa and 85%RH. The exhaust gas leaves at 250°C and 750mmHg with a complete analysis of 12.08%CO2, 0.25%CO, 0.55%H2, 2.12%O2, 71.17%N2 and the rest is H2O. Find the formula of the biodiesel.

70 kilograms of 15 wt% sulfuric acid in water at 27°C is mixed with 110 kilograms of 80 wt% sulfuric acid at -23°C. During the process, 20 MJ of heat is removed from the system. What is the final wt% sulfuric acid as a percentage with one decimal place. i.e. 64.5% What is the enthalpy of the final solution in kJ/kg relative to pure components at 300K? What is the temperature of the final product solution? H/kJ (kg solution)-¹ 300 200 100 -100 -200 -300 -400 -500 Copyright © McGraw-Hill Education. Permission required for reproduction or display. a 350 K I 300 k 250 K I I I I T 0 10 20 30 40 50 60 Wt. % H₂SO I I 70 I 1 b 80 90 100

The vapour pressure of water P in mm Hg at t°C is given by the equation 1668.21 log10 PW = 7.96681 - t +228 A gaseous mixture at a total pressure of 1600 mm Hg and 100°C contains permanent gases and water vapour. The mole fraction of water vapour in the mixture is 0.12. The mixture is cooled at constant pressure. a) At what temperature will the first drops of condensed water appear? b) Using a basis of 100 kmol of initial mixture, how much water will be condensed when the temperature has reached 20°C?