Collection of things that have a connection with each other, they have boundaries, elements that are connected and related in some way, it functions together as a whole
System
They are in the system, somehow related one to another, it is energy and material, they function together to create the system (ex: atmosphere, land and ocean)
Elements
They are in the system, somehow related one to another, it is energy and material, they function together to create the system (ex: atmosphere, land and ocean)
Open system
System in which energy is still exchanged but there is no material flowing in or out
Closed system
There is no energy created or material flowing in or out
Isolated system
Relating the imputs and outputs to the change in reservoir size, delta S/delta t = Fi - Fo
Continuity equation
(Symbol) reservoir size
S
(Symbol) input
Fi
(Symbol) output
Fo
When the difference between the inputs and the outputs is 0, the system is in a…
Steady state (fi = fo)
When the difference between the inputs and the outputs is not 0, meaning that there is a difference between what’s going in and what’s going out, the system is in a…
Transient state (fi = not fo)
Most
Q
Most system at any given moment are __________
Transient
True or false: the state of a system can vary over time?
True
When the inputs are more important than the outputs this means the state is…
Transient incresing
When the outputs are more important than the inputs this means the state is…
Transient decreasing
The average length of time a substance remains in a reservoir at a steady state is called the…
Residence time
