D] lllE bOHHECIIOH OI ACCESSIDIE states I0 Entropy: The widely used symbol to denote "total number of accessible microstates" is Omega, 13 9 = total # of accessible microstates available to the system of particles. Entropy, S, is a state function that has meaning, just like other state functions (T, P, etc. ), when the system is in an equilibrium state. From a statistical point of View, the equilibrium state of all state functions is that macrostate that has the greatest number of microstates associated with it. In terms of microstates, the thermodynamic state function entropy, S, is given by the relation: S = '23 ?nQ(Statistical meaning of entropy). Now let us consider how the entropy, S, of a macroscopic system composed of a large number of particles, i.e., actual matter, would change as certain constraints or added, removed, or changed. For each of the listed examples below, describe how the total number of accessible microstates associated with that parameter would change as the parameter is changed, which tells us how the entropy changes. Discuss your responses to the following and be prepared to state your reasoning to the whole class: 1) Going through a phase transition. 2) Changing the volume, which determines where particles of a gas can be located. 3) Changing the temperature, which is a measure of thermal energy