While capture processes may become more efficient, there is a thermodynamic limit$,$

as with any process. Consider three possible mixtures from which to separate the

CO$2$:

Air containing $400$ ppmv of $CO2$ at a temperature of $30oC.$

Calculate the minimum energy requirement to separate the $CO2$ out of the mixture

in $k\frac{J}{m}$olCO$2$

$20\mathrm{.}50k\frac{J}{m}$olCO$2$

$26\mathrm{.}23k\frac{J}{m}$olCO$2$

$22\mathrm{.}23k\frac{J}{m}$olCO$2$

$24\mathrm{.}23k\frac{J}{m}$olCO$2$