You are in working on a project to separate a mixture of hydrocarbons by equilibrium flash operation. The system that you design employs 100-kmol of feed composed of 25 mol% n-butane, 35 mol% nhexane, and 40 mol% n-pentane. In this process n-hexane is flashed. If 80% of the hexane is in the liquid at 240 oF, what are the pressure and the liquid vapor composition?

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

How does the attraction between particles affect the ability of a solvent to dissolve in a substance

Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol