  The properties of nanoconfined fluids can be strikingly different from those
of bulk liquids. A basic unanswered question is whether the equilibrium and
dynamic consequences of confinement are related to each other in a simple way.
We study this question by simulation of a liquid comprising asymmetric
dumbbell-shaped molecules, which can be deeply supercooled without
crystallizing. We find that the dimensionless structural relaxation times -
spanning six decades as a function of temperature, density, and degree of
confinement - collapse when plotted versus excess entropy. The data also
collapse when plotted versus excess isochoric heat capacity, a behaviour that
follows from the existence of isomorphs in the bulk and confined states.
