The discussion revolves around thermodynamics, specifically addressing various questions related to properties of gases, equilibrium states, and the classification of physical properties as extensive or intensive. Participants are exploring concepts related to thermal and mechanical equilibrium, as well as the implications of chemical reactions in isolated systems.
There is ongoing exploration of the definitions and classifications of properties, with some participants expressing uncertainty about their answers. Questions regarding the nature of equilibrium states and the implications of chemical reactions are being raised, indicating a productive dialogue without a clear consensus.
Participants are navigating the complexities of thermodynamic principles, including the definitions of equilibrium and the characteristics of extensive versus intensive properties. There is mention of homework constraints and the need for clarification on specific concepts.
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."