Balanced dissolution expression of al(no3)3(s)

Al(NO₃)₃(s) → Al⁺³(aq) + 3NO⁻³(aq)

To answer the question we need to ask ourselves the following;

What is a dissolution reaction?

What happens when a salt or a compound dissolves in water?

Al(NO₃)₃(s) → Al⁺³(aq) + 3NO⁻³(aq)

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.