Chapter 11 Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Condensation | the process by which a gas changes to a liquid
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| evaporation | the process by which a liquid changes to a gas
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| melting | when a solid changes into a liquid
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| freezing | when a liquid changes into a solid
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| enthalpy | the total energy content of a system (energy)
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| entropy | a measure of the randomness or disorder of a system
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| specific heat capacity | the amount of heat energy required to raise the tempurature of 1g of a substance by 1 K
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| thermodynamics | energy changes that accompany physical and chemical processes
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| endothermic | when something is absorbing heat
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| exothermic | when heat is leaving something, or when heat is being given off by something
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| Gibbs energy | a thermodynamic property incorporating both enthalpy and and entropy
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| Calorimeter | a device used to measure the heat absorbed or released in a chemical or physical change
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| Hess's Law | the overall enthalpy change in a reaction equal to the sum of the enthalpy changes of the individual steps of the process
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| Standard enthalpy of formation | the amount of heat released ot absorbed when i mol of compound is made from its elements under standard conditions
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| Gibbs energy | a thermodynamic property incorporating both enthalpy and entropy
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| intensive property | a property that does not deoend on the amount of material present
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| extensive property | a property that depends on the amound of material present
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| Sublime | going directly from a solid to a gas
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| heat (enthalpy) of fusion | the heat absorbed by a solid to get it to a liquid. (to its melting point)
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| enthalpy of vaporization | the amount of heat it takes to get a liquid to a gas
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| calorimetry | the act of measuring the heat of something or making such measurements
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| spontaneous | occuring without added energy
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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