Chapters 10-12 Flashcards
energy
the ability to do work or produce heat
potential energy
energy due to position or composition
kinetic energy
energy due to the motion of the object and depends on the mass of the object and its velocity
law of conservation of energy
energy can be converted from one form to another but can neither be created nor destroyed
work
force acting over a distance
state function
property of the system that changes independently of its pathway
temperature
measure of the random motions of the components of a substance
heat
a flow of energy due to a temperature difference
system
the part of the universe on which we focus attention
surrounding
includes everything else in the universe
exothermic
(exo - “out of” - energy flows out of the system
endothermic
heat flow moves into a system
thermodynamics
study of energy
first law of thermodynamics
The energy of the universe is constant, energy can be converted from one form to another but can neither be created nor destroyed
internal energy
E, the sum of the kinetic and potential energies of
