For each form of aspirin, describe how well they dissolve in acidic vs. basic solutions. Explain why these results occurred, take into consideration the chemical nature of the aspirin, and its solubility. Research the claims of manufacturers on the internet, and state whether your results support their claims (the particular manufacturer does not matter, any manufacturers of regular, buffered, enteric, and powdered aspirin will do) (You can also include a chart). (3 points)

there are two significant figures.

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.