This work uses molecular dynamics to understand the mechanistic details of near-critical behavior of multicomponent systems. We focus on a multicomponent system of n-undecane/nitrogen subjected to a thermodynamic cycle of evaporation and condensation to study the non-equilibrium dynamics and clustering behavior. Collaborators: Suman Chakraborty, Suvo Banik, Joseph Insley, Patrick Lynch, Subramanian Sankaranarayanan, Kenneth Brezinsky