- Arts & Culture 5972
- Business & Economics 690
- Computers 317
- Dictionaries & Encyclopedias 82
- Education & Science 76576
- Abstracts 226
- Astrology 4
- Astronomy 1
- Biology 8
- Chemistry 2654
- Coursework 15846
- Culture 8
- Diplomas 411
- Drawings 576
- Ecology 6
- Economy 82
- English 78
- Ethics, Aesthetics 3
- For Education Students 17639
- Foreign Languages 11
- Geography 3
- Geology 1
- History 89
- Maps & Atlases 5
- Mathematics 13871
- Musical Literature 2
- Pedagogics 19
- Philosophy 23
- Physics 15074
- Political Science 5
- Practical Work 101
- Psychology 60
- Religion 4
- Russian and culture of speech 8
- School Textbooks 7
- Sexology 42
- Sociology 9
- Summaries, Cribs 87
- Test Answers 154
- Tests 8965
- Textbooks for Colleges and Universities 32
- Theses 24
- To Help Graduate Students 14
- To Help the Entrant 37
- Vetting 364
- Works 13
- Информатика 10
- Engineering 3062
- Fiction 695
- House, Family & Entertainment 106
- Law 133
- Website Promotion 71
111. Solving a chemistry problem
Uploaded: 19.08.2022
Content: 2.3.rar 18,84 kB
Product description
In whole cow´s milk, the average volume diameter of fat droplets ranges from 2.9 to 4.4 microns, depending on individual conditions. Other characteristics are more constant: at 20 °C fat density is 0.920 g/cm3, dispersion medium density (skimmed milk) is 1.034 g/cm3, viscosity is 1.60 mPa*s.
Let us assume that whole milk with a fat droplet diameter of 4 µm is placed at 20°C in a rectangular cardboard "package" 15 cm high. At the initial moment of time, the droplets are uniformly distributed in height. How long will it take for 50% of the fat to float to the surface of the milk if all the droplets have the same diameter? (Note that under these conditions, the ascent time for 50% fat is the same as the time for one drop to rise from half the height of the bag)
Additional information
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.
Feedback
0Period | |||
1 month | 3 months | 12 months | |
0 | 0 | 0 | |
0 | 0 | 0 |