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chemistry test 4

Across
Endothermic reactions _____ heat
energy associated with motion
SI unit of energy
What type of reaction has a positive change in enthalpy?
The heat per unit mass required to melt a substance at its normal boiling point is referenced as heat of _____
Reactions that release energy
Energy is commonly defined as the _______ to do work
able to occur without outside help
Total amount of heat liberated or absorbed in a chemical reaction
SI unit of heat
Device used to measure heat flow during physical processes and chemical reactions
What is defined as a value determined only by the state of the system, defined by the values of variables such as temperature (T) and pressure (P)
heat required to cause a unit rise (1° C) in the temperature of a unit mass (1 g) of the substance
Liquid --> gas
Down
Portion of the universe being studied
Energy related to an object's position
The enthalpy of any pure substance
Thermodynamics is the field of chemistry that deals with the ____ ____ in chemical reactions
Solid --> liquid
Which law restates the law of conservation of energy, _____ Law of thermodynamics
The heat per unit mass required to vaporize a substance at its normal boiling point is known as heat of ______
SI unit of work
Randomness of a substance
What is equal to the internal energy of a system + the product of its pressure and volume
The _____ law of thermodynamics states that entropy is always increasing
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