# First Law of Thermodynamics
![[First Law of Thermodynamics]]
# Energy Definitions
## Boundary Work
![[Boundary Work]]
![[Polytropic Process]]
## Internal Energy
![[Internal Energy]]
## Enthalpy
![[Enthalpy]]
## Kinetic Energy
![[Kinetic Energy]]
## Potential Energy
![[Gravitational Potential Energy]]
# Power and Heat Rate
## Conservation of Mass
![[Conservation of Mass]]
# Transient Flow Processes
![[Transient Flow Processes Energy]]