AREA III - Engineering Thermodynamics Flashcards
It deals with heat and work and these properties of substances that bear a relation to heat and work
Thermodynamics
its value for an overall system is the sum of its values for the parts into which the system is divided
Extensive property
its value is independent of the size or extent of a system and may vary from place to place within the system at any moment
Intensive property
It is a measure of the internal energy of a body
Temperature
the number of degrees above absolute zero expressed in Kelvins or Rankine.
Absolute temperature
It is the normal (perpendicular) force exerted by a fluid per unit area against which the force is exerted.
Pressure
It is the measure of pressure above zero.
Absolute pressure
It is measured above existing atmospheric pressure.
Gage pressure
What is the Standard atmospheric pressure?
101.3 kPa
mass per unit volume
mass per unit volume
volume per unit mass, reciprocal of density
Specific volume
the quantity of energy required to raise the temperature of a unit mass
by 1 K.
Specific Heat
States that when two bodies have equality of temperature with a third body, they in turn
have equality of temperature with each other.
Zeroth law
also known as the Conservation of Energy principle, states that energy can
neither be created not destroyed, it can only change forms.
First Law of Thermodynamics
It deals with the quality of energy (energy degradation).
Second Law of Thermodynamics