Thermodynamics
FIRST LAW OF THERMODYNAMICS
FIRST LAW OF THERMODYNAMICS
The First Law of Thermodynamics is a balance of the various forms of energy as
they pertain to the specified thermodynamic system (control volume) being studied.
EO 1.19
STATE the First Law of Thermodynamics.
EO 1.20
Using the First Law of Thermodynamics, ANALYZE
an open system including all energy transfer processes
crossing the boundaries.
EO 1.21
Using the First Law of Thermodynamics, ANALYZE
cyclic processes for a thermodynamic system.
EO 1.22
Given a defined system, PERFORM energy balances
on all major components in the system.
EO 1.23
Given a heat exchanger, PERFORM an energy
balance across the two sides of the heat exchanger.
EO 1.24
IDENTIFY the path(s) on a T-s diagram that
represents the thermodynamic processes occurring in
a fluid system.
First Law of Thermodynamics
The First Law of Thermodynamics states:
Energy can neither be created nor destroyed, only altered in form.
For any system, energy transfer is associated with mass and energy crossing the control
boundary, external work and/or heat crossing the boundary, and the change of stored energy
within the control volume. The mass flow of fluid is associated with the kinetic, potential,
internal, and "flow" energies that affect the overall energy balance of the system. The exchange
of external work and/or heat complete the energy balance.
Rev. 0
Page 53
HT-01
