4. if you add chromate, an oxidizing agent, to each of the following, would a green crº solution be formed? a. 3-pentanol b. 2-methyl-2-butanol c. 1-propanol 5. if an alcohol solution has a ph of 5, would it be a primary alcohol, a secondary alcohol, a tertiary alcohol, or a phenol? 01

fe 55.85 g/mol and h2o 18.02 g/mol.

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.