Isochoric Processes and the First Law of Thermodynamics
This content addresses the first law of thermodynamics, dU = δW + δQ, which relates the change in a system's internal energy to the work done on/by the system and the heat added to it. The core theoretical point is that internal energy change equals heat added only when the net work done by the system is zero, which occurs specifically when there is no volume change (i.e., no mechanical work), since systems can in principle perform mechanical, electrical, magnetic, or chemical work. This is a foundational concept in classical thermodynamics governing energy conservation in physical systems.
Isochoric Processes and the First Law of Thermodynamics
This content addresses the first law of thermodynamics, dU = δW + δQ, which relates the change in a system's internal energy to the work done on/by the system and the heat added to it. The core theor…