In a constant‑pressure calorimeter, 70.0 ml70.0 ml of 0.320 m ba(oh)20.320 m ba(oh)2 was added to 70.0 ml70.0 ml of 0.640 m hcl.0.640 m hcl. the reaction caused the temperature of the solution to rise from 23.00 ∘c23.00 ∘c to 27.36 ∘c.27.36 ∘c. if the solution has the same density and specific heat as water ( 1.00 g/ml1.00 g/ml and 4.184j/g⋅k,)4.184j/g⋅k,) respectively), what is δhδh for this reaction (per mole h2oh2o produced)

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.