________ is when energy is transferred from the system to the surroundings, such as when a chemical reaction occurs in a beaker and the beaker feels hot.
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Hess’s Law
________ states that if a reaction can be broken into a series of steps, the sum of the ΔH of those steps are equal to the ΔH of the reaction.
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Enthalpy change
________ is the measure of energy that is released or absorbed when bonds are broken /formed.
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Temperature
________ remains constant during a phase change.
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Calorimetry
________ is the measurement of heat changes during a chemical reaction.
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Enthalpy of vaporization
________ is how much energy is required to turn a liquid to a gas.
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Endothermic reactions
________ occur when a system absorbs the energy from the surroundings, such as when a beaker feels cold.
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Vapor pressure
________ is the amount of pressure given off by molecules as they go from solid /liquid to gas.
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heat of vaporization
The ________ is the energy given off when a gas condenses.
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Hydration energy
________ is a Coulombic energy and its magnitude increases as the ions increase their charge or decrease the size.
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released
When bonds are formed, energy is ____.
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Enthalpy of fusion
________ is the amount of energy required to cause a solid to melt.
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absorbed
When bonds are broken, energy is _____.
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Solid to gas
sublimation
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Gas to solid
deposition
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ΔH
Enthalpy change
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ΔHf°
Enthalpy of formation
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Enthalpy of formation
The amount of energy released when one mole of a compound is made from pure substances
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Vapor pressure
Molecules that go from solid/liquid to gas emit ________.
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Endothermic
________ is when energy is transferred from the surrounding to the system, such as when a chemical reaction occurs in a beaker and the beaker feels cold.
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