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ap chem unit 10: thermochemistry
Energy is denoted as… (letter)
E
Energy is the ability to…
do work or produce heat
Energy is the sum of all…
all potential and kinetic energy in a system
Energy is also known as the…
internal energy of the system
Potential energy is…
energy by virtue of position
Potential energy is usually the…
energy stored in bonds
When bonded atoms are separated, the PE is ______ because energy must be _____ to overcome the coulombic attraction between each nucleus and the shared electrons.
raised, added
When atoms bond, the coulombic attraction results in energy being ________ and a subsequently _____ PE.
released, lower
Kinetic energy is…
the energy of motion (translational, rotational, vibrational motion of particles in our case).
Kinetic energy depends on the ____ and the ________ of the object.
(give formula)
mass, volume
formula: KE = ½ mv²
Law of conservation of energy says that…
(which law of thermodynamics)
energy is never created nor destroyed
1st law of thermodynamics
