Derives the differential equation for a diffusion limited drug delivery system.

1. Osmotic Pressure
2. Osmotic Pressure: Protein Molecular Weight (Bio)
3. Phase Equilibrium: Txy Diagram
4. Heat Removal to Condense a Vapor Mixture
5. Binary VLE
6. Batch Distillation: Azeotrope
7. Binary Flash Distillation Example
8. Rachford-Rice Procedure for Isothermal Flash Distillation
9. Packed Bed Column Height
10. Binary Distillation with Multiple Feeds
11. Binary Distillation with Non-Optimal Feed
12. Binary Distillation with Open Steam Heating
13. Binary Distillation with Side Stream Product
14. Distillation with No Distillate
15. Distillation: Murphree Efficiency
16. Distillation using Partial Condenser (Part I)
17. Distillation using Partial Condenser (Part II)
18. Distillation: Side Stream Feed
19. Absorption of a Dilute Species
20. Partially Miscible Liquid-Liquid Extraction
21. Single-Effect Evaporator: Introduction
22. Single-Effect Evaporator: Heat Transfer Area
23. Triple-Effect Evaporator: Introduction
24. Triple-Effect Evaporator: Backward Feed
25. Reverse Osmosis
26. Reverse Osmosis: Changes in Driving Force
27. Diffusion through a Carbon Rod (Part I)
28. Diffusion through a Carbon Rod (Part II)
29. Mass Transfer in a Catalyst Sphere
30. Diffusion Limited Drug Delivery (Bio)
31. Unsteady-State Diffusion
32. Convective Mass Transfer
33. Convective Mass Transfer: Part I (Bio)
34. Convective Mass Transfer: Part II (Bio)
35. Excel Solver Introduction
36. Hunter-Nash Method: Liquid-Liquid Extraction
37. Interpolating Tie Lines on a Ternary Diagram
38. Adsorption Introduction
39. What is Chemical Potential? (Multi-Component Systems)
40. Diffusion into a Solid
41. Binary Phase Diagram (Txy and xy)
42. Flash Distillation Derivation
43. Flash Distillation Energy Balance
44. Enthalpy Concentration Diagram
45. Enthalpy Concentration Diagram Example
46. Deriving Molar Flux Equations
47. Equimolar Counterdiffusion (EMD)
48. Equimolar Counterdiffusion Example
49. Unimolecular Diffusion (UMD)
50. Unimolecular Diffusion Example
51. McCabe-Thiele Graphical Method Example (Part I)
52. McCabe-Thiele Graphical Method Example (Part II)
53. Deriving the Differential Equations of Mass Transfer
54. Diffusion from Spherical Particle
55. Hunter-Nash Method: Liquid-Liquid Extraction Example
56. Mass Transfer Setup to Reactive Surface
57. Langmuir Isotherms for Binary Mixture
58. Pxy Diagram (Simulation)
59. Osmolarity Example (Bio)
60. Osmotic Shock Disruption (Bio)
61. Ternary Phase Diagram Basics (Simulation)
62. McCabe-Thiele: Stepping off Stages

LearnChemE features faculty prepared engineering education resources for students and instructors produced by the Department of Chemical and Biological Engineering at the University of Colorado Boulder and funded by the National Science Foundation, Shell, and the Engineering Excellence Fund. In these screencasts, LearnChemE covers topics such as Osmotic Pressure, Phase Equilibrium, Distillation, Absorption, Convective Mass Transfer, and more. These videos are organized according to "Separation Process Engineering" (Phillip C. Wankat, 2nd Ed.) and "Fundamentals of Momentum, Heat, and Mass Transfer" (Welty, Wicks, Wilson and Rorrer, 5th Ed.).