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Q#1
Size Reduction
GATE CH 2023
NAT
+2 marks
-0 marks
A large tank is filled with water (density =\(1 g.cm^3\) upto a height of 5 m. A 100 μm diameter solid spherical particle (density = 0.8 \(g.cm^3\) ) is released at the bottom of the tank. The particle attains its terminal velocity (𝑣𝑡) after traveling to a certain height in the tank. Use acceleration due to gravity as 10 \(m s^{-2}\) and water viscosity as\(10^{-3} Pa.s\) . Neglect wall effects on the particle. If Stokes law is applicable, the absolute value of 𝑣𝑡 (in \(mm. s^{−1}\) is ____________(rounded off to two decimal places).
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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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