Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format. National Exam 16-Chem-A1, December 2018 — open-book, 3 hours. Two parts: Part A (Process Balances, Q1–Q3) and Part B (Chemical Thermodynamics, Q1–Q3). Candidates answer TWO from each part; each question is of equal value. All six questions are solved in full below.
Reference texts: Felder, Rousseau & Bullard, Elementary Principles of Chemical Processes (4th ed., Wiley) — degree-of-freedom analysis, separation trains, humidity and condensation energy balances, recycle systems; Himmelblau & Riggs, Basic Principles and Calculations in Chemical Engineering (8th ed.) — psychrometrics and recycle-ratio calculations; Smith, Van Ness, Abbott & Swihart, Introduction to Chemical Engineering Thermodynamics (8th ed., McGraw-Hill) — residual properties from a real-gas EOS, reaction equilibrium from ΔG°, and generalized/EOS fugacity coefficients; supporting critical-property data from Poling, Prausnitz & O’Connell, The Properties of Gases and Liquids (5th ed.).
