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Previous year question hub

Mass Transfer - Chemical Engineering Previous Year Questions

Practice Mass Transfer - Chemical Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

19Papers
19Years
130Questions
1Topics

Mass Transfer question pattern

Every graph below is calculated only from this selection.

Questions by year

Compare question counts across years.

Difficulty distribution

How the classified questions are distributed by difficulty.

Medium 94 72.3%
Easy 32 24.6%
Hard 4 3.1%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 92 70.8%
Numerical Answer Type (NAT) 35 26.9%
Fill in the blanks 2 1.5%
MSQ 1 0.8%

Subject weightage

Top subjects by unique question coverage.

Chemical Engineering
130 Qs

Most asked topics

Top topics across the included previous year papers.

Mass Transfer
130 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Distillation and Absorption
47 Qs
Diffusion and Mass-transfer Theories
43 Qs
Drying, Humidification and Membrane Separation
19 Qs
Stagewise Contacting and Transfer Units
11 Qs
Extraction, Leaching and Adsorption
10 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Chemical Engineering (CH) 2026
7 Qs
Chemical Engineering (CH) 2025
7 Qs
Chemical Engineering (CH) 2024
8 Qs
Chemical Engineering (CH) 2023
7 Qs
Chemical Engineering (CH) 2022
6 Qs
Chemical Engineering (CH) 2021
6 Qs
Chemical Engineering (CH) 2020
8 Qs
Chemical Engineering (CH) 2019
7 Qs
Chemical Engineering (CH) 2018
7 Qs
Chemical Engineering (CH) 2017
7 Qs
Chemical Engineering (CH) 2016
4 Qs
Chemical Engineering (CH) 2014
7 Qs
Chemical Engineering (CH) 2013
7 Qs
Chemical Engineering (CH) 2012
5 Qs
Chemical Engineering (CH) 2011
4 Qs
Chemical Engineering (CH) 2010
5 Qs
Chemical Engineering (CH) 2009
9 Qs
Chemical Engineering (CH) 2008
11 Qs
Chemical Engineering (CH) 2007
8 Qs

Browse by subtopics

Open a focused page built from the same verified paper data.

Distillation and Absorption

Explore previous-paper coverage, trends and focused practice for Distillation and Absorption.

47 questions18 papers18 years

Diffusion and Mass-transfer Theories

Explore previous-paper coverage, trends and focused practice for Diffusion and Mass-transfer Theories.

43 questions19 papers19 years

Drying, Humidification and Membrane Separation

Explore previous-paper coverage, trends and focused practice for Drying, Humidification and Membrane Separation.

19 questions14 papers14 years

Stagewise Contacting and Transfer Units

Explore previous-paper coverage, trends and focused practice for Stagewise Contacting and Transfer Units.

11 questions9 papers9 years

Extraction, Leaching and Adsorption

Explore previous-paper coverage, trends and focused practice for Extraction, Leaching and Adsorption.

10 questions9 papers9 years

Included previous year papers

Newest papers appear first. Search these papers or sort by year and name.

Paper nameYearPDFAttempt
Chemical Engineering (CH) 20262026
7 questions in this view		2026
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Chemical Engineering (CH) 20252025
7 questions in this view		2025
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20242024
8 questions in this view		2024
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20232023
7 questions in this view		2023
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20222022
6 questions in this view		2022
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20212021
6 questions in this view		2021
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Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20202020
8 questions in this view		2020
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20192019
7 questions in this view		2019
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20182018
7 questions in this view		2018
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20172017
7 questions in this view		2017
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20162016
4 questions in this view		2016
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20142014
7 questions in this view		2014
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20132013
7 questions in this view		2013
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20122012
5 questions in this view		2012
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20112011
4 questions in this view		2011
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20102010
5 questions in this view		2010
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20092009
9 questions in this view		2009
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20082008
11 questions in this view		2008
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Chemical Engineering (CH) 20072007
8 questions in this view		2007
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download

Sample previous year questions

A varied preview from the papers represented in this selection, with every available option.

1
2007 · Chemical Engineering · Mass Transfer · Distillation and Absorption
Chemical Engineering (CH) 2007
If \(T_A\) and \(T_B\) are the boiling points of pure A and pure B respectively and \(T_{AB}\) is that of a non-homogeneous immiscible mixture of A and B, then
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2
2008 · Chemical Engineering · Mass Transfer · Distillation and Absorption
Chemical Engineering (CH) 2008
Q.16 In a countercurrent gas absorber, both the operating and equilibrium relations are linear. The inlet liquid composition and the exit gas composition are maintained constant. In order to increase the absorption factor
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3
2009 · Chemical Engineering · Mass Transfer · Diffusion and Mass-transfer Theories
Chemical Engineering (CH) 2009

According to the penetration theory of mass transfer, the mass transfer coefficient (k) varies with diffusion coefficient (D) of the diffusing species as

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4
2010 · Chemical Engineering · Mass Transfer · Distillation and Absorption
Chemical Engineering (CH) 2010

The flooding velocity in a plate column, operating at 1 atm pressure, is 3 m/s. If the column is operated at 2 atm pressure, under otherwise identical conditions, the flooding velocity will be

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5
2011 · Chemical Engineering · Mass Transfer · Diffusion and Mass-transfer Theories
Chemical Engineering (CH) 2011
Ammonia (component 1) is evaporating from a partially filled bottle into surrounding air (component 2). The liquid level in the bottle and the concentration of ammonia at the top of the bottle are maintained constant. \(N_1\) is the molar flux relative to a fixed location in space and \(J_1\) is the molar flux with respect to the average molar velocity of the constituent species in the gas phase. Assume that air in the bottle is stagnant. Which ONE of the following is CORRECT?
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6
2012 · Chemical Engineering · Mass Transfer · Distillation and Absorption
Chemical Engineering (CH) 2012
In the McCabe-Thiele diagram, if the \( x \)-coordinate of the point of intersection of the \( q \)-line and the vapor-liquid equilibrium curve is greater than the \( x \)-coordinate of the feed point, then the quality of the feed is
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