Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format. National Exam 16-Chem-A1, December 2019 — open-book, 3 hours. Two parts: Part A (Process Mass & Energy 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) — heats of reaction from combustion data, fuel/air combustion balances, and flash (equilibrium) energy balances; Smith, Van Ness, Abbott & Swihart, Introduction to Chemical Engineering Thermodynamics (8th ed., McGraw-Hill) — reaction equilibrium and the van’t Hoff equation, generalized (Pitzer) fugacity coefficients and the liquid-fugacity/Poynting relation, and heat-of-mixing energy balances; critical-property and Rackett data from Poling, Prausnitz & O’Connell, The Properties of Gases and Liquids (5th ed.).
