Match each type of organic compound to its description. Column A
Column B
1.
a. Polymer
Contains an oxygen and hydrogen (-O-H)
bonded to a carbon
b. Ether
2.
Contains an oxygen bonded within the carbon
chain
c. Alcohol
3.
Contains a carbon atom double-bonded to an
oxygen atom
d. Carbonyl group
Extremely long molecule chain with repeated
molecular units

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.