Chemical Engineering
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CH 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 37–39 of 65. Imported answers require review unless explicitly marked reviewed.
Question 37
Open questionCHMCQ2 marksNeeds review
Consider a flow with the following velocity field
where
,
and
are the unit vectors in the x, y and z directions, respectively. Which one of the following is CORRECT?Your answerChoose one option.
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Open questionCHMCQ2 marksNeeds review
Vapor pressure of water at various temperature is given in the table.
Temperature (in K) | 284 | 289 | 294 | 299 | 310 |
|---|---|---|---|---|---|
Vapor pressure of water (in kPa) | 1.28 | 1.80 | 2.50 | 3.40 | 6.40 |
An air and water vapor mixture at 100 kPa with a relative humidity of 20% has a dry-bulb temperature of 310 K. Assume latent heat of vaporization for water is 44 kJ mol
and specific heat capacity of the air and water vapor mixture is 0.035 kJ mol
K
. Which one of the following is the closest to its wet-bulb temperature (in K)?Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 39
Open questionCHMCQ2 marksNeeds review
A volatile organic compound (VOC) is to be adsorbed from air onto a bed of activated carbon. The equilibrium capacity of activated carbon at the feed conditions is 0.4 grams VOC per gram of activated carbon. The column contains 4 grams of activated carbon per cm
of cross-section. The feed rate into the adsorber column is 0.2 grams VOC cm
h
. Breakthrough time is defined as the time at which the concentration at the exit of the bed (
) reaches a value of
, where
is the concentration of VOC in the feed. The breakthrough time for the bed is 2 h. The area under the
curve between the initial and breakthrough times is 0.1 h. Which one of the following is the fraction of unused bed at breakthrough?Your answerChoose one option.
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