Chemical Engineering
2023 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CH 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 34–36 of 65. Imported answers require review unless explicitly marked reviewed.
Question 34
Open questionCHNAT1 markNeeds review
A liquid
containing a dissolved gas
is stripped in a countercurrent operation using a pure carrier gas
. The liquid phase inlet and outlet mole fractions of
are 0.1 and 0.01, respectively. The equilibrium distribution of
between
and
is governed by
, where
and
are the mole fractions of
in
and
, respectively. The molar feed rate of the carrier gas stream is twice that of the liquid stream. Under dilute solution conditions, the minimum number of ideal stages required is __________ (in integer).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 35
Open questionCHNAT1 markNeeds review
In a binary gas-liquid system,
is the molar flux of a gas A for equimolar counter diffusion with a liquid B.
is the molar flux of A for steady one component diffusion through stagnant B. Using the mole fraction of A in the bulk of the gas phase as 0.2 and that at the gas-liquid interface as 0.1 for both the modes of diffusion, the ratio of
to
is equal to _____ (rounded off to two decimal places).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 36
Open questionCHMCQ2 marksNeeds review
An exhibition was held in a hall on 15 August 2022 between 3 PM and 4 PM during which any person was allowed to enter only once. Visitors who entered before 3:40 PM exited the hall exactly after 20 minutes from their time of entry. Visitors who entered at or after 3:40 PM, exited exactly at 4 PM. The probability distribution of the arrival time of any visitor is uniform between 3 PM and 4 PM. Two persons
and
entered the exhibition hall independent of each other. Which one of the following values is the probability that their visits to the exhibition overlapped with each other?Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer