Quiz 4/1 Flashcards
(40 cards)
Thermochemistry
Energy in the form of heat produced/consumed in the process of a chemical reaction
Thermodynamics
Transformation of energy from one form to another
Energy
Capacity to do work or transfer heat
Heat
Energy that is transferred between objects because of a difference in their temp
Thermal equilibrium
Temp is the same throughout. No heat transfer
Work
Directed energy change resulting from a process
Law of conservation of energy
Energy cannot be created or destroyed, energy can be converted from one form to another
Potential energy -> ?
Kinetic energy
Chemical energy -> ?
Heat energy
Potential energy
Can be converted into work
PE=mgh
State function
Properties that are determined by the state of the system, regardless of how you got there
T = what?
Kelvin
t = what?
Celsius
Kinetic energy formula
KE=1/2 mv squared Mass and velocity
System
Part of universe we care about
Open system
Mass and energy transfer is possible
Closed system
Energy transfer only (insulation)
Isolated system
No transfer
Surroundings
Everything besides the system
___ + ____ = universe
System and surroundings
Exothermic
Heat coming from the system into the surroundings
Endothermic
Heat going from the surroundings to the system
+q
Heat in system
-q
Heat leaving system
