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Q#1
GATE CH 2021
NAT
+2 marks
-0.66 marks
A binary liquid mixture consists of two species 1 and 2. Let ๐ธย and ๐ย represent the activity coefficient and the mole fraction of the species, respectively. Using a molar excess Gibbs free energy model, ๐ฅ๐งย ๐ธ๐ย ๐๐. ๐๐ย and ๐ฅ๐งย ๐ธ๐ย ๐๐. ๐๐ย are plotted. A tangent drawn to the ๐ฅ๐งย ๐ธ๐ย ๐๐. ๐๐ curve at a mole fraction of ๐๐ย = ๐. ๐ย has a slope = โ1.728.
The slope of the tangent drawn to the ๐ฅ๐งย ๐ธ๐ย ๐๐. ๐๐ย curve at the same mole fraction is________(correct to 3 decimal places).
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Browse Practice Questions by Chapters / Topics in Browse Practice Questions by Chapters / Topics in GATE Chemical Engineering
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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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