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Thermochemistry
Review basic vocabulary for thermochemistry.
Question | Answer |
---|---|
The study of energy changes that occur during a chemical reaction or change of state. | Thermochemistry |
What type of energy is stored in chemical bonds? | Potential energy |
Energy that is transferred from one object to another. | Heat |
What is the absence of heat called? | Cold |
What direction will heat always flow/move? | From a warmer object to a colder object |
The measure of the total kinetic energy of a sample. | Heat |
The unit of heat is _____. | Joules (J) |
The units for temperature are _____ or _____. | degrees Celsius or Kelvins |
The measure of average kinetic energy of a sample. | Temperature |
Energy can not be created or destroyed - it can only change form. | Law of Conservation of Energy |
The measure of disorder of a system. | Entropy |
What state of matter contains the highest amount of entropy? | Gas |
Symbol for entropy | "delta" S |
Symbol for enthalpy | "delta" H |
When a chemical reaction will proceed by itself, this is called _____. | Spontaneous |