For a nonsteady-state diffusion situation (constant surface composition) in which the surface and initial compositions are provided, as well as the value of the diffusion coefficient, develop a spreadsheet that allows the user to determine the distance from the surface at which some specified composition is achieved for some specified diffusion time.

Lecture 3: Graphics Problem Solving Review Engineer's Scale Practice Sheet Outcomes Use an engineering scale to scale features of a drawing Generate graphic solutions of problems Practice legible writing Exercise 1 Construct a triangle of side lengths 3 cm, 4 cm, and 5 cm and measure the internal angles with your protractor. Use a scale of 1" = 1 cm. Cannot use calculator. o Tools Engineering scale Compass Protractor Exercise 2 Graphically solve the 4 sided polygon to scale on engineering paper Choose a scale so that your drawing is within the solid border and covers 1/2- 3/4 of your page Measure and report length of sides A & B. Measure angl