Consider the acid-catalyzed esterification of phthalic acid to form buthylphthalate and dibutyl phthalate in an inert solvent like chloroform. Both steps of this reaction rapidly establish equilibrium. In this system, would you expect adding an equimolar amount of one reagent dropwise to the other to affect the outcome of the reaction

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

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.