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HW #16 November 17, 2017

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Work problems 6.1, 6.20, 6.22, 6.30 and these are due on November 27th

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Answers to 2nd Exam November 13, 2017

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answersHere are the answers for the 2nd exam. Problem 1: 1280 kg/sec for V2 = 38 m/sec , Problem 2: DAB = 8.92 x 10^-6 cm2/sec using (5.35 and 42) or DAB = 6.84 x 10^-6 cm2/sec using SE with a = 3.14 x 10^-8 cm, Problem 3: 5 seconds, 4: 423 microns is the diameter

HW #15 November 13, 2017

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Here is HW15 which is due on November 20th, hw15

Homework Assignment #14 November 3, 2017

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Work problems 5.3, 5.20, 5.26, 5.32, 5.38 and these are due on November 15th. 

Chapter 5 Lecture Slides October 25, 2017

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Here are some additional notes on some stuff we will be talking about from Chapter 5; notes about film theory, filmtheory

Homework #13 October 31, 2017

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Here is homework #13 due on November 6th; work problems 5.10, 5.15, 5.19, 5.22

Homework Assignment #12 October 27, 2017

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For HW12 work these problems 5.27 and 5.43. This assignment is  due on November 3rd.

An Extra Bernoulli Example October 20, 2017

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 prob458

 

 

 

Homework Assignment #11 – Update October 20, 2017

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Here is HW #11  NOW due on November 1st:

1. A drug has an equilibrium solubility in water of 0.0025 g cm^-3. The diffusivity of the drug in water is 0.9 x 10^-5 cm2/sec. The drug is made into particles that have a radius of 0.1 cm and these particles have a density of 1.27 g/cm^3. These particles are all of the same size and are gently mixed in water in a stirred vessel. Estimate the length of time in hours (hrs) that it will take for these drug particles to completely dissolve. You can assume that the vessel volume is so large that the concentration of the drug in the bulk liquid is very small in comparison to the drug solubility. Also since the particles are all the same size, the time to dissolve is the same for all the particles.

2. In chapter 5, also work problems 13, 29.

Homework Assignment #10 October 18, 2017

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Here is homework assignment #10 due on 10/25/2017,  in chapter 5 work problems 1, 11, 14, 24, 35, 36, 41

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