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Q#1 GATE CH 2022 MCQ +2 marks -0.66 marks

๐‘ย moles of an ideal gas undergo a two-step process as shown in the figure. Let ๐‘ƒ,ย and ๐‘‡ย denote the pressure, volume and temperature of the gas, respectively. The gas, initially at state-1 (๐‘ƒ1,1,๐‘‡1), undergoes an isochoric (constant volume) process to reach state-A, and then undergoes an isobaric (constant pressure) expansion to reach state-2 (๐‘ƒ2, ๐‘‰2, ๐‘‡2). For an ideal gas, ๐ถpย โ€“ ๐ถvย = ๐‘๐‘…, where ๐ถpย and ๐ถvย are the heat capacities at constant pressure and constant volume, respectively, and assumed to be temperature independent. The heat gained by the

gas in the two-step process is given by

ย  ย  ย  ย  ย  ย  ย  ย  ย  ย  ย  ย  ย .

๐‘ƒ2ย (๐‘‰2ย โ€“ ๐‘‰1) + ๐ถVย (๐‘‡2ย โ€“ ๐‘‡1)

.

.

.

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Topic Questions Attempted Correct
Heat Transfer 26 0 0
Chemical Technology 17 0 0
Mechanical Operations 12 0 0
Mass Transfer 42 0 0
Instrumentation and Process Control 26 0 0
Fluid Mechanics 24 0 0
Engineering Mathematics 41 0 0
General Aptitude 60 0 0
Chemical Reaction Engineering 26 0 0
Process Calculation 9 0 0
Plant Design Economics 10 0 0
Thermodynamics 24 0 0
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