L1: Systems And Reaction (3) Flashcards
a well-defined part of the universe where thermodynamic processes take place
System
refer to everything outside that is in close contact with the system.
Surroundings
a closed surface surrounding a system
Boundary
system plus the surroundings
Universe
The classification of a system entirely depends on the _______
movement of energy and matter in or out of the system
nozzle
open system
Combustion chamber
Closed system
Piston cylinder
Closed system
Matter changes as it absorbs or releases energy. There are two types of reactions: endothermic and exothermic reactions.
Energy changes
_____ changes as it absorbs or releases energy.
Matter
There are two types of reactions:
endothermic and exothermic reactions
Matter changes as it ______
absorbs or releases energy
reaction: cooking
Endo
Reaction: thermal decomposition
Endo
Reaction: melting ice
Endo
Reaction: chemical bonds
Exo
