Need help with these 3 questions. Pls HELP 1. The graph on the left shows the effect that temperature has on the solubility of several
solids. Write a general rule to describe the graph above.
2
What do you notice about the effect of temperature on the solubility of Nacı? Does the rule
you constructed above apply to every solid?
3.
The graph on the right shows the effect temperature has on the solubility of several gases.
Write a general rule to describe the graph above. Does the rule apply to all gases shown in
the graph?

yes

explanation:

search chemistry final b exam in google and a site called quizlet will pop up

the answer is d. 74.02

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.