GATE Mass Transfer: Distillation – Previous Year Questions
7 GATE previous year questions on Distillation (Mass Transfer, Chemical Engineering) with answers and explanations, from every paper.
- GATE 2022 CH Q56 – An equimolar binary mixture is to be separated in a simple tray-distillation column. The feed rate is 50 kmol min-1. The mole fractions of the more…
- GATE 2023 CH Q26 – A packed distillation column, with vapor having an average molecular weight of 45 kg kmol-1, density of 2 kg m-3 and a molar flow rate of 0.1 kmol…
- GATE 2023 CH Q57 – Distillation of a non-reactive binary mixture with components A and B is carried out in a batch still as shown in the figure below. The initial charge…
- GATE 2024 CH Q42 – A simple distillation column separates a binary mixture of A and B. The relative volatility of A with respect to B is 2. The steady-state composition…
- GATE 2025 CH Q54 – A binary AB liquid mixture containing 30 mol% A is subjected to differential (Rayleigh) distillation at atmospheric pressure in order to recover 60…
- GATE 2026 CH Q20 – A binary mixture of butane and butadiene is to be separated in an extractive distillation using furfural. Furfural lowers the activity of butadiene…
- GATE 2026 CH Q47 – A continuous distillation column is used to separate an equimolar mixture of diethylamine (DEA) and methanol. The feed enters the column as saturated…