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) =

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?