PG$13$

$"$ RuO$2/$TiO$260\%40\%40070\%550)$

$2$

$($ m$3/$mol$)$ isobutane $90$ Psat $16\mathrm{.}54$

$40340\%$ n$-25$ n$-$butane $$ n$-$butane $2\mathrm{.}43.$