P Chem
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| thermodynamics | study of transformation of energy
🗑
|
||||
| system | the quantity of matter when we can draw a boundary
🗑
|
||||
| surroundings | region outside system we make measurements
🗑
|
||||
| open system | matter and energy CAN be transferred through boundry between system and surroundings
🗑
|
||||
| closed system | matter CANNOT be transferred through boundry. Energy CAN be transferred.
🗑
|
||||
| isolated system | closed system that has no mechanical/thermal contact with surroundings CANNOT transfer matter or energy
🗑
|
||||
| work | done to achieve motion against an opposing force:Raise weight. when a force acts upon an object to cause displacement of an object. eg. Pushing shoprite cart.
🗑
|
||||
| energy | capacity to do work
🗑
|
||||
| heat | energy transferred due to temp. differences ONLY
🗑
|
||||
| diathermic | boundries that DO permit transfer of energy as heat
🗑
|
||||
| adiabatic | boundries that do NOT permit transfer of energy as heat
🗑
|
||||
| exothermic | releases energy as heat into suroundings. combustion increase TEMP
🗑
|
||||
| endothermic | energy is absorbed by sustem from surroundings as heat
🗑
|
||||
| thermal motion | disorderly molecular motion in surroundings.
🗑
|
||||
| internal energy | total energy of system state function deyltaU
🗑
|
||||
| state function | value depends only on current state of system independent of path
🗑
|
||||
| first law of thermodynamics | internal energy of an isolated system is constant
🗑
|
||||
| expansion work | work arising from change in volume
🗑
|
||||
| nonexpansion work/ additional work | work arising from no change in volume
🗑
|
||||
| free expansion | expansion against zero opposing force
🗑
|
||||
| indicator diagram | graph used to show expansion of work
🗑
|
||||
| reversible change | change that can be reversed by an infinitesimal ,small modification of a variable.
🗑
|
||||
| calorimetry | study of heat transfer during physical and chemical process.
🗑
|
||||
| calorimeter | device used to measure energy energy transferred as heat
🗑
|
||||
| adiabatic bomb calorimeter | measures internal energy when q=0
🗑
|
||||
| calorimeter constant | c
🗑
|
||||
| heat capacity | slope tangent to curve at any temp
🗑
|
||||
| molar heat capacity | Cvm=Cv/n
🗑
|
||||
| specific heat capacity | Cv/mass
🗑
|
||||
| enthalpy | u+pV
🗑
|
||||
| isobaric calorimieter | constant pressure
🗑
|
||||
| adiabatic flame calorimeter | constant volume
🗑
|
||||
| differential scanning calorimeter | measure H
🗑
|
||||
| thermochemistry | study of energy transferred as heat in chem rxn
🗑
|
||||
| std enthalpy | change in enthalpy when the inital and fianl substances in std state
🗑
|
||||
| std state | 1 bar
🗑
|
||||
| std enthalpy of transition | change in physical state
🗑
|
||||
| hfus | s to l
🗑
|
||||
| hvap | l to g
🗑
|
||||
| lattice enthalpy | change in std molar enthalpy
🗑
|
||||
| born haber cycle | solves for lattice enthlpy
🗑
|
||||
| thermochemical equation | combo of chem eq and corresponding change in std enthalpy
🗑
|
||||
| std reaction enthalpy | sum of H prod - Sum of Hreac
🗑
|
||||
| std enthalpy combustion | complete oxidation of organic compound to co2 gas and liquid h2o is contains CHON
🗑
|
||||
| hess law | enthalpy of an overall rxn is the sum of std enthalpies of individual rxns into which a rxn maybe divided.
🗑
|
||||
| std enthalpy of form | std rxn enthalpy for formation of compound from its elements in ref states.
🗑
|
||||
| reference state | most stable state 1 bar
🗑
|
||||
| stochimetric numbers | vj Hprod-Hreac
🗑
|
||||
| kirchoff Law | equates emission and absorption in heated objects
🗑
|
||||
| path functions | depend on path between 2 states
🗑
|
||||
| exact differential | small quanitity when integrated gives a result that is independent of path between initial and final state.
🗑
|
||||
| inexact differential | small quantity when integrated gives a result that depends on path between initial and final states.
🗑
|
||||
| internal pressure | internal energy of system changes when it expands or contracts at constant temp
🗑
|
||||
| expansion coeff | fractional change in volume when temp increases
🗑
|
||||
| isothermal compressibility | fractional change in volume when pressure increases
🗑
|
||||
| isenthalpic | constant enthalpy
🗑
|
||||
| isothermal joule thomson coeff | slope of graph p vs t
🗑
|
||||
| inversion temp | critical temp when non ideal gas is expanding at constant enthalpy temp is decreasing.
🗑
|
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.
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.
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.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
eida
Popular Chemistry sets