PHYSICS · Subjective · Fermi University Physics · Thermal, Statistical & Complex Systems · Statistical foundations and the equilibrium ensembles · Statistical foundations and the equilibrium ensembles
Forces, Machines and Signals, Ch Free energy at work: states, weights and entropic forces
Problem
A ligand-gated ion channel has one closed state, taken as the energy origin, and four structurally distinct open states, each at energy 1.5kBT above the closed state. At 298K, find the probability that the channel is open (in any of its four open states) and the probability that it is closed.