This discussion focuses on thermodynamics homework questions, specifically addressing the classification of extensive and intensive properties, equilibrium states of gas mixtures, and the application of classical thermodynamics to various scenarios. Participants clarified that the magnetic moment of a gas is extensive, while the electric field in a solid is intensive. They concluded that the initial state of a hydrogen-oxygen mixture is not in equilibrium due to the potential for reaction, while the final state achieves chemical equilibrium post-explosion. The conversation also delves into the nuances of thermal, mechanical, and chemical equilibrium in systems containing multiple gases.
PREREQUISITESStudents studying thermodynamics, educators teaching thermodynamic concepts, and professionals in engineering or physical sciences seeking to deepen their understanding of gas behavior and equilibrium states.
mmmboh said:Ok well the first one is no because thermodynamics is only concerned with macroscopic properties of matter, for the magnetude of the specific heat capacity of a solid I would say yes since "the change in the internal energy of a closed thermodynamic system is equal to the sum of the amount of heat energy supplied to or removed from the system and the work done on or by the system or we can say " In an isolated system the heat is constant"."...and specific heat capacity is the amount of heat required to raise a unit quantity of a substance one degree...I'm still not sure how to explain the magnetic dipole one, or the the relation between the pressure and temperature of electromagnetic radiation in a cavity one, or the relation between the pressure dependence of the specific heat capacity of a solid and the temperature dependence of its volume...I know PV=nRT, and if you hold pressure constant and raise the temperature then the volume will raise...I have tried looking I can't find much :S
bp_psy said:In section "1.1 Scope of Thermodynamics" it is written that "From the principles of thermodynamics one can derive the general relations between such as coefficients of expansion,compressibilities,specific heat capacities ... The actual magnitude of quantities like those above can only be calculated on the basis of a molecular model."