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Topic: Intensive variable


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  Intensive quantity - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-10-08)
In physics and chemistry, an intensive quantity (also referred to as an intensive variable) is a physical quantity whose value does not depend on the amount of the substance for which it is measured.
It follows, for example, that the ratio of two extensive quantities is an intensive quantity.
For instance, density (intensive) is equal to mass (extensive) divided by volume (extensive).
en.wikipedia.org /wiki/Intensive_variable   (308 words)

  
 The world of thermodynamics || The First Law of Thermodynamics
Early experiments on the variables of state (such as T, P, V, and n) showed that only two of these variables of state need to be known to know the state of a sample of matter.
Once two variables are known, the state of the matter is known and the values of the other variables can be determined.
One thing to note is that any extensive variable can be converted to an intensive variable by dividing it by the moles or the mass (like we did with the heat capacity).
td-guide.net /flt   (977 words)

  
 The Euler Equation and the Gibbs-Duhem Equation
Mass is an extensive variable, density is an intensive variable.
Intensive functions are homogeneous of degree zero, extensive functions are homogeneous of degree one.
It shows that three intensive variables are not independent - if we know two of them, the value of the third can be determined from the Gibbs-Duhem equation.
www.tug.org /texshowcase/EulerGibbsDuhem.html   (352 words)

  
 SparkNotes: Thermodynamic Structure: Terms
Important intensive variables are the temperature τ, the chemical potential μ, and the pressure p.
Maxwell Relations - The Maxwell Relations give relationships between the partial derivative of one variable with respect to a variable in a different pairing and the corresponding cross partial derivative of the other variable in the second pairing with respect to the other variable in the first.
, and is one of the important intensive variables in thermodynamics.
www.sparknotes.com /physics/thermodynamics/structure/terms.html   (331 words)

  
 2000-2001 UAF Catalog: English   (Site not responding. Last check: 2007-10-08)
Variable subject matter in significant topics in British literature of the Restoration period and the 18th Century.
Variable subject matter in significant topics in American literature of the colonial and early national periods.
Variable content in terms of the writers to be studied, and the kinds of narrative writing to be assigned.
www.uaf.edu /univrel/catalog/catalog_00-01/courses/engl.html   (2406 words)

  
 Using GIS to Evaluate Spatial Variations in Area Source Emissions
Let V be the variable of interest, S be the source zone, T be the target zone, and A be the area of a zone.
In the example of deriving population density for the model grid cells, V is the population density variable, Zone S may be a census tract, and Zone T is a grid cell.
The variable V is extensive if its value for a target zone is equal to the sum of its values for the intersection zone.
gis.esri.com /library/userconf/proc97/proc97/to400/pap367/p367.htm   (4027 words)

  
 Temperature and Phase Change
A definition: a variable is "intensive" if doubling the amount of material in a system doesn't necessarily change the variable.
Now, if you divide two extensive variables into one another you can be sure that you will get an intensive variable.
So we can see that if we choose 2 intensive variables (say, P and T) the third (Vm) is fixed.
www.newton.dep.anl.gov /askasci/chem00/chem00378.htm   (573 words)

  
 SOME CONCEPTS IN ENERGETICS
Six variables are needed for each mass-point, three to specify the position and three for the velocity.
A characteristic of a system is a variable of state or property only if its value does not depend on the past history of the system, but only on the conditions at the time of measurement.
Given a certain thermo dynamical state of a homogeneous fluid, defined by any two of the variables of state, we observe that there is an infinite number of states of molecular motion that correspond to it.
www.fiu.edu /~cuervol/PhysiologicalMechanisms/Energetics.htm   (5079 words)

  
 Music Course Descriptions
Intensive study for advanced music education students and music teachers, emphasizing specialized techniques and innovative concepts.
Commercial courseware and various CAI models will serve as the basis for creating original programs that can be used effectively to implement objectives of the music curriculum for a specific school or school district.
Study of vocal ranges, characteristics and capabilities at various ages and scoring for choral ensembles comprised of singers in these varying stages of development.
www.umsl.edu /bulletin/Home/College_of_Arts_and_Sciences/Music/Music_Course_Descriptions/body_music_course_descriptions.html   (3298 words)

  
 Uniloc USA | Products | Technology   (Site not responding. Last check: 2007-10-08)
The process of measuring carbon and silicone degradation is accomplished by measuring a chip's ability to process complex mathematical computations and its ability to respond to intensive time variable computations.
Using variable offsets capable of compensating for factors such as heat and additional stresses placed on a chip during the sampling process allows for each and every benchmark to reproduce the expected values.
The various encryption processes are used in conjunction with random sampling and key generations.
www.unilocusa.com /Products/technology.html   (586 words)

  
 English Courses   (Site not responding. Last check: 2007-10-08)
By the end of the semester, students should be able to compose and organize a grammatically correct and adequately developed expository essay.
Intensive study of themes, genres, authors, and factions prominent in American literature before 1830.
Typical of the areas of study are: The Spirit of '76, early fiction and poetry, Jonathan Edwards and Benjamin Franklin, the Puritans.
www.bridgeport.edu /print/2396.asp   (95 words)

  
 Fluid cell
The fluid variables describing the state of the cell.
The fluid variables associated with a fluid cell.
Linear interpolation is used and the boundaries of the domain are treated as planes of symmetry for all variables.
gfs.sourceforge.net /reference/gfs-fluid-cell.html   (604 words)

  
 GEOL 3411 Outline - Chap 04
Intensive variable = property of the system that can be changed and is independent of the size of the system, such as temperature, pressure, composition
These take place at various combinations of temperature and pressure that map out as phase boundaries between the stability fields in a phase diagram.
The diagrams typically show compostion varying horizontally and temperature varying vertically: vertical lines in such a graph are constant-temperature lines or isopleths, and horizaontal line are constant temperature lines, or isotherms.
www.tamuk.edu /Geo/Jordan/f02/3411/co/outln04.htm   (754 words)

  
 Publication Frequency, Citation Frequency, and Quality of Counselin
Pairs of experts varied in their judgments about the quality of a given scholar's work, and were generally quite disparaging about the aggregate quality of counseling psychology research.
An alternative dependent variable, Virtual Worth, was calculated in those instances when three or more judges were employed; to achieve optimal reliability, individual subject scores were calculated as the mean of the two closest ranks assigned by all judges.
The fourth independent variable, Gender, was not significantly correlated with either dependent variable and was therefore dropped from the analyses.
horan.asu.edu /d-bk-apa.htm   (3526 words)

  
 CHP - Phase Rule   (Site not responding. Last check: 2007-10-08)
As a simple example, if an evacuated container is filled to half its volume with pure water, we would expect the system to reach equilibrium when the temperature, T, becomes constant and uniform throughout the container.
Our common sense tells us that only this one intensive variable must be uniform throughout the system for the system to be at equilibrium.
As expected above, only one variable must be constant, T in the example, to determine that the system is at equilibrium.
www.chem.vt.edu /chem-ed/thermo/phaserule.html   (313 words)

  
 Evaluation of Variable Rate Technology as a Management Tool for Potassium
Variable Rate Technology (VRT) and associated application systems provide a means of assuring fertilizer applications are made only in amounts and locations where they are needed (Wollenhaupt, et al., 1993).
Evaluate Variable Rate Technology as a management tool for K fertilization of corn and soybean on soils with a range in depth to claypan.
Based upon the initial soil tests for K and soil topography/soil depth variations within each field, 10 grid cells (called squares) were identified at Jefferson County (Figure 1) and nine cells were identified at Pope County (Figure 2) for intensive variable K rate evaluations in 1997.
frec.cropsci.uiuc.edu /1998/report11   (2139 words)

  
 QCD MATTER FACTS AND INFORMATION
It is completely determined once the remaining intensive variables are specified.
The equation of state is usually a relation between the extensive and the intensive variables of the theory.
However, in various parts of the phase diagram, its use is hampered by the fermion_doubling_problem and the fermion_sign_problem.
www.amysflowershop.com /QCD_matter   (801 words)

  
 [No title]
However, we set an important criterion for the selection variables of state: State variables are those variables that only depend on state, and not on how the system arrived at that state.
Those that depend on the size are called extensive variable, e.g., V,H, E; and those which do not, such as T and P, are called as intensive variables.
An extensive variable can be converted to an intensive variable by appropriate division, e.g.
chem.pdx.edu /~ranavas/biosciencesLecture2.doc   (1171 words)

  
 Chemistry 1020--Spring 1999--Lecture 9 Notes
Force is called an "intensive" variable, and distance and "extensive" variable.
He could then using an electric heater measure the amount of electrical energy necessary to cause the same increase in temperature, and therefore define the heat as an equivlent form of energy.
Our current unit of energy, the Joule, is named after him, and is defined in terms of electrical energy as the product of voltage (in volts, an intensive variable) and current (in coulombs, an extensive variable).
www.chem.fsu.edu /editors/rlight/1020s99/lecture9.html   (1921 words)

  
 Mailing List complex-science@necsi.org Message 3516
> >is a extensive variable and energy is an intensive variable.
intensive variable is the same throughout the systems i.e.
Extensive variables like volume, current, etc can be divided.
necsi.org:8100 /Lists/complex-science/Message/3516.html   (904 words)

  
 Introduction to Chemical Engineering: Single Phase Systems Summary   (Site not responding. Last check: 2007-10-08)
We all know, however, that changing the process variable (T and P) can cause a material to change phases (boil/condense or freeze/melt) and that under certain conditions we can have multiple phases coexisting (for example: solid water (ice) in a glass of liquid water; water vapor bubbles in liquid water (boiling)).
A phase diagram is a plot of one system variable versus another which shows the conditions at which the substance is a solid, liquid, gas, or s.c.
An intensive variable is one which does not depend on system size (like temperature, pressure, or specific volume).
granular.che.pitt.edu /~mccarthy/che0035/MB/multi/phasediags.html   (609 words)

  
 German Course in Mannheim,Germany Language School Courses,Business Study
Intensive German: Not only will you learn German intensively, you will also really get to know Germany and its people in a convenient way.
You can choose the intensive course that suits your needs an timetable best: 4 or 8 weeks or a course of variable duration.
Intensive courses offer 20 and 25 teaching units of 45 minutes each per week in groups of up to 12 participants.
www.learn4good.com /great_schools/germany_mannheim_german_language_courses.htm   (312 words)

  
 A Glossary of Frequently Misused or Misunderstood Physics Terms and Concepts.
The uncertainty in a measured quantity is due to inherent variations in the measurement process itself.
A measurable property of a thermodynamic system is intensive if when two identical systems are combined into one, the variable of the combined system is the same as the original value in each system.
A prediction of the probable variability of a result, based on the inherent uncertainties in the data, found from a mathematical calculation of how the data uncertainties would, in combination, lead to uncertainty in the result.
www.lhup.edu /~dsimanek/glossary.htm   (9793 words)

  
 Evaluation of variable rate technology as a management tool for potassium fertilization of grain crops.
The same two commercial farm fields that were utilized in 1997 (one in Jefferson County, IL and the other in Pope County, IL) were utilized for the 1998 growing season for this research.
The same grid cells, 10 at the Jefferson County site and nine at the Pope County site, were used for the intensive variable K rate evaluations in 1998.
The same two field locations used in 1997 were utilized in 1998 for variable rate K studies on corn and soybean, one in Jefferson County and the other in Pope County, IL.
frec.cropsci.uiuc.edu /1999/report11   (1926 words)

  
 PLMS FAQ About Grazing
With intensive (variable) rotational stocking this varies with the time needed to get the target dry matter production per acre accumulated to adequately feed the class of livestock being pastured.
While this can vary depending on class of animal, time of year, and producer goals, it should be short enough to prevent grazing of newly emerging tillers.
Grazing animal nutritional needs vary during the year and must consider quantity and quality of the pastures and feeds offered.
clic.cses.vt.edu /PLMS/faqlisting.html   (8246 words)

  
 Sample Problem   (Site not responding. Last check: 2007-10-08)
An intensive variable is one that can be defined locally within a system; its magnitude does not depend on whether we select a system or a part of a system.
An extensive variable is one that is defined for the system as a whole; its magnitude does depend on how much of the system we choose to select.
Which of the following variables are intensive and which are extensive?
www.physics.umd.edu /perg/abp/TPProbs/Problems/H&T/H&T06.htm   (69 words)

  
 Voltammetry Retrospective   (Site not responding. Last check: 2007-10-08)
One can think of the potential as the intensive variable (energy in V or J/C) applied to the working electrode, and one can think of the current as the extensive variable (current in A or C/s) corresponding to the rate of an electrode reaction in response to the potential perturbation.
Many variations of the basic polarographic method were developed during the 1940s and early 1950s.
The potential of the electrode attains values that are characteristic of the electroactive couple and varies with time as the concentration ratio of the electroactive couple changes at the electrode surface.
chem.ch.huji.ac.il /~eugeniik/instruments/electrochemical/voltammetry_retrospective.html   (4508 words)

  
 Mind.Forth 1feb2Ka.f Archival Version
variable c (continuation-flag for "ear" array phonemes) variable enx (transfer-to-English-lexicon) variable eot (end-of-text for tentative use in SENSORIUM) variable f (fiber) variable fex (fiber-out) variable fin (fiber-in) variable g (grammar category) 1 g !
variable ph (phoneme) variable pos (part-of-speech) variable pre (previous) variable prevg (previous grammar category) variable quota (for eventual use in intensive searches) variable rv (recall-vector) variable s (source) variable seq (subSEQuent) variable spy (level of inspection) 48 spy !
variable tdec (time-decrement) variable tse (time in string-effect) variable tult (time-ultimate) variable tv (time-of-voice for use with.echo) variable unk ("unknown") variable ut (ultimate-tag) 0 ut !
mind.sourceforge.net /1feb2Ka.html   (3463 words)

  
 Syllabus   (Site not responding. Last check: 2007-10-08)
How might you adapt either the simple or statified sampling design to a study area for which the variable you are sampling is spatially heterogeneous in part of the study area and homgeneous in another part?
When using regression analysis to measure the direction and strength of the association between property value and floor space, which is the independent variable and which is the dependent variable?
The assumption of zero spatial autocorrelation that is made by many methods of statistical inference is in direct contradiction to Tobler's Law.
web.pdx.edu /~bosworth/gis1/3b.html   (292 words)

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