Thermodynamic Processes
• States of a thermodynamic system can be changed by
interacting with its surrounding through work and heat.
When
this change occurs in a system, it is said that the system is
undergoing a
process
.
• A thermodynamic
cycle
is a sequence of different processes that
begins and ends at the same thermodynamic state.
• Some sample processes:
!
Isothermal process: temperature is constant T=C
!
Isobaric process: pressure is constant, P=C
!
Isentropic process: entropy is constant, s=C
!
Constant-volume process, v=C
!
Adiabatic process: no heat transfer, Q=0
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