thermo ch2 | Baamboozle - Baamboozle | The Most Fun Classroom Games!

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ability of a substance or medium to release power when its stored energy is used up

energy

measure of molecular disorder or randomness of a system

entropy S

actual pressure at a given position

absolute pressure

transfer of energy from the energetic particles to the adjacent less energetic

conduction

separates the system and the surrounding

boundary

pressures below atmospheric pressure

vacuum pressure

one of the most fundamental principles in nature

conservation of mass principle

sum of all microscopic forms of energy

internal energy (U)

amount of volume of a fluid flowing through a cross section per unit time

volume flow rate

transfer of energy between a solid surface and the adjacent fluid that is in moiton

convection

states that energy can neither be created nor destroyed

first law of thermodynamics / conservation of energy principle

heat corresponds to the heat added or rejected to on object

latent heat

think of density as the bulk average density over the cross section (gas)

compressible flow

exchange of energy between a control volume and its surroundings is achieved by

heat transfer, work, mass transfer

neither mass and energy within the control volume change with respect to time

steady flow

work due t the movement of volume

flow work Wf

usually case for liquids, canceling density from both sides, it is constant during the flow

incompressible flow

transfer of energy due to the emission of electromagnetic waves

radiation

states that mass cannot be created or destroyed

conservation of mass/ continuity equation

molecular structure of a system

microscopic forms of energy

energy that a system possesses due to its elevation above some arbitrarily selected datum

Potential energy PE

amount of mass flowing through a cross section per unit time

mass flow rate

thermodynamics properties are of interest, embedded in its surrounding

thermodynamic system

no heat transfer

adiabatic process

energy that a system possesses as a result of its motion

Kinetic Energy KE

used to measure pressure in a tank

manometer

force per unit square

pascal (Pa)

system possesses with respect to some outside reference frame, such as kinetic and potential energies

macroscopic forms of energy

sum of all microscopic forms of energy of a system

Internal energy U

form of energy that is transferred between two systems

heat

difference between the absolute pressure and the local atmospheric pressure

gage pressure

energy can cross the boundary of a closed system in two distinct forms

heat and work

increase in potential of an elastic body

Potential energy of spring or elastic spring PEs

measure of total amount of heat present in the thermodynamic system where the pressure is constant

enthalpy H

heat that can cause an object to change its temperature

sensible heat