Hardcore Chemical Engineering Quiz – November 2025
A demanding set of multiple‑choice questions testing deep knowledge of core chemical engineering principles.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
For a first‑order irreversible reaction A→B in an isothermal plug‑flow reactor, which expression correctly relates conversion X to reactor volume V?
- 2
Using the Fenske equation at total reflux, what is the minimum number of theoretical stages required to achieve a separation factor of 10 for a binary mixture with relative volatility α = 2?
- 3
A chemical with a flash point of 55 °C is stored in a facility where ambient temperature can reach 45 °C. According to OSHA classification, which hazard class applies?
- 4
At 298 K, the Henry’s law constant (H) for gas X in water is 1.2 × 10⁵ Pa·m³·mol⁻¹. What is the solubility (C) of X in water when its partial pressure is 0.75 atm?
- 5
In a chemical plant, the hot utility requirement is 500 MW and the cold utility requirement is 300 MW after pinch analysis. What is the minimum external utility consumption?
- 6
An autocatalytic reaction follows the rate law r = k C_A C_B, where C_B is the catalyst formed from A. Which statement about its kinetic behavior is correct?
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