T-butyl alcohol (tba) is an important octane enhancer that is used to replace lead additives in gasoline [ind. eng. chem. res., 27, 2224 (1988)]. tba was produced by the liquid-phase hydration (w) of isobutene (i) over an amberlyst-15 catalyst. the system is normally a multiphase mixture of hydrocarbon, water, and solid catalysts. however, the use of cosolvents or excess tba can achieve reasonable miscibility. the reaction mechanism is believed to be
i + s > < i * s
w + s > < w * s
w * s + i * s > < tba * s + s
tba * s > < tba + s

1. derive a rate law assuming:
a) the surface reaction is rate - limiting
b) the adsorption of isobutene is limiting.

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

b. examine and describe cells

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