Chemical Engineering
2022 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CH 2022 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
moles of an ideal gas undergo a two-step process as shown in the figure. Let
,
and
denote the pressure, volume and temperature of the gas, respectively. The gas, initially at state-1 (
), undergoes an isochoric (constant volume) process to reach state-A, and then undergoes an isobaric (constant pressure) expansion to reach state-2 (
). For an ideal gas,
, where
and
are the heat capacities at constant pressure and constant volume, respectively, and are assumed to be temperature independent. The heat gained by the gas in the two-step process is given by 
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Open questionCHMCQ2 marksNeeds review
A horizontal cylindrical water jet of diameter
cm strikes a vertical solid plate with a hole of diameter
cm, as shown in the figure. A part of the jet passes through the hole and the rest is deflected along the plate. The density of water is 100 kg m
. If the speed of the jet is 20 m s
, the magnitude of the horizontal force, in N, required to hold the plate stationary is
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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
Consider a horizontal rod of radius
(
) in a stationary pipe of radius
. The rod is pulled coaxially at a constant velocity
as shown in the figure. The annular region is filled with a Newtonian incompressible fluid of viscosity
. The steady state fully developed axial velocity profile in the fluid is given by
, where
is the radial coordinate. Ignoring end effects, the magnitude of the pulling force per unit rod length is
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