Vocab Flashcards
(25 cards)
Two quantities
Energy and Mass (E, M)
Forms of energy
Heat potential kinetic light sound
Sources of energy
Nuclear solar thermo wind geo hydro electric
Parts of a power plant
High temp body, Heat engine, low temp body
W Net
Useful energy, qh _ql
1st law
Conservation or energy
2nd law
Energy is wasted as it moves
Combustion is at Max
30% useful
Isolated system
No mass and no energy can interact with the system
Closed system
Mass can’t move in it, but energy can
Open system
Both mass and energy can move
System change
Process
State one is at
Rest
How to define each state
Thermos properties
Thermos prop
Mass energy volume temp pressure density internal potential kinetic
Goes through multiple process and returns to original state
Cycle
How many states for a cycle
2 at min
Phases
Freezing melting sublimation evaporation
Solid → liquid
Melting
Solid → gas
Sublimation
Liquid → gas
Evaporation
Liquid → solid
Freezing
Thermal equilibrium
Equality of temp
Mechanical equilibrium
Equality of pressure
