More than one distinct microstate of a system can have a particular energy (a macrostate). The purpose of this interactive example is to ensure that you know how to deal with this fact when calculating the probability that a small system (here, a molecule) in contact with a thermal reservoir has a particular energy. Let's consider a molecule that can be in one of six microstates. It exchanges energy with a thermal reservoir at a temperature T. One microstate has energy EA, two states have energy EB = 3EA, and three states have energy EC = 5EA. To simplify the numerical calculation, you may assume that the temperature is such that kBT = EA. What is the probability that the molecule has energy EB? P(EB) =