Energy and Heat Basics

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30 Terms

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Heat energy
________ can flow in or out of the system depending on whether the system or surrounding is warmer.
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chemical bond
A(n) ________ is a form of Potential Energy.
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Heat
________: form of energy that is transferred from a body at a high temperature to a body at a lower temperature.
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Surroundings
________: the rest of the universe other than the system.
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Energy
________ can be converted from one form to another, but never lost.
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Exothermic process
________: heat flows out of the reaction system into the surroundings.
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Endothermic process
________: heat flows from the surroundings into the reaction system.
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Energy
________: the capacity to do work or generate heat.
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Energy
the capacity to do work or generate heat
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Energy Measurements
Calories (Cal) or Joules (J)
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Law of Conservation of Energy
Energy is neither created or destroyed
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Potential Energy
energy that results from an objects position or configuration
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Kinetic Energy
the energy of movement
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Thermal Energy
A type of Kinetic energy
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Heat
form of energy that is transferred from a body at a high temperature to a body at a lower temperature
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System
part of the universe upon which we focus our attention
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Surroundings
the rest of the universe other than the system
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Endothermic process
heat flows from the surroundings into the reaction system
19
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Exothermic process
heat flows out of the reaction system into the surroundings
20
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Energy
the capacity to do work or generate heat
21
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Energy Measurements
Calories (Cal) or Joules (J). 4.184 J = 1 Cal
22
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Law of Conservation of Energy
Energy is neither created or destroyed. It is always conserved during a change. Energy can be converted from one form to another, but never lost.
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Potential Energy
Energy that results from an object’s position or configuration. A chemical bond is a form of Potential Energy.
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Kinetic Energy
The energy of movement. The energy which a mass possesses due to its motion.
25
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Thermal Energy
A type of Kinetic energy. The motion of atoms.
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Heat
Form of energy that is transferred from a body at a high temperature to a body at a lower temperature.
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System
Part of the universe upon which we focus our attention. Heat energy can flow in or out of the system depending on whether the system or surrounding is warmer.
28
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Surroundings
The rest of the universe other than the system.
29
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Endothermic process
Heat flows from the surroundings into the reaction system.
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Exothermic process
Heat flows out of the reaction system into the surroundings.

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