Can anyone explain entrophy?
969170
It's a tough concept to grasp. Here are some good explainations:\n\n\nhttp://www.madsci.org/posts/archives/oct98/909712896.Ph.r.html\nhttp://www.madsci.org/posts/archives/mar97/859247407.Ev.r.html\nhttp://www.madsci.org/posts/archives/nov99/942797163.Gb.r.html
116108
I have a really good, comprehensive table of the Enthalpies, Entropies and Gibb's free energy that I use, I wish I could give it to you, but I forgot where I got it, I only have a hard copy.\n\nYou may be able to search around the internet and find some good tables, but they wont likely be very comprehensive.\n\nOne good source would be the back appendix of a college level chemistry books.  These books usually have a pretty good table of enthalpy/entropy in the back, plus lots more info.  You can pick one up cheap at a used book store I am sure since it doesnt really matter how old the book is.
12351
You could start with these sites and go from there.\n\nhttp://www.sciencebyjones.com/specific_heat1.htm\nhttp://en.wikipedia.org/wiki/Specific_heat_capacity\nhttp://www.rwc.uc.edu/koehler/biophys.2ed/heat.html
436857
Good question. \n\nIt's just notation. Just like why do we show potential energy by U? Why do we show density by "rho"?
282832
Explain........you know I can be so dense. But if you explain it I can get a visual for it. And hearing it will make it sink into my head forever. But show me how........and I'll never forget it!
893091
Entropy (S) is the measure of disorder in a system. When thinking of problems such as this, it's helpful to think of it in terms of a gas being the highest entropy state, a liquid being kind of in the middle, and then a solid being the lowest entropy state.  \nA) A gas goes to another gas.  There should be no change in S.\nB) S is negative.  A gas condenses to a solid. You are moving from a higher state of entropy to a lower state.\nC) Positive S value. You go from the lowest energy state (solid) to an aqueous solution (liquid), which means the entropy goes up as well.
185616
The guy who answered before was right but i wanna explain it. An exothermice reaction is one in which heat energy is lost to the surroundings, thus at the end of the reaction, some heat would have been lost. For heat to have been lost, the product has to have lesser heat than the reactant.Take not that heat here is the same as Enthalphy.\nSince the Enthalphy heat value = heat of product-heat of reation = a negative number because heat of product is lesser.\nthus the answer is i nd ii\n\n2. To calculate the heat absorbed or evolved in a system, the formulais Q(quantity of heat) = m*c*T, where m is the mass, c is the specific heat capacity, and T is the change in temperature, thuis this three are neede. Density is not important in this calculation\nso the answwers are i and iii
210348
It's a general rule that only about 10% of the energy in one trophic level flows to the following level. You could define trophic levels as the position that each organism occupies with respect to the ultimate source of energy, the Sun. The plants (autotrophs) occupy the first trophic level (=producers), herbivorous animals occupy the second trophic level (=first order consumers) and so forth. \nThis 90% loss is due to the energetic efficiency of living systems (efficiency is calculated as the amount of energy that is assimilated or absorbed with respect to the energy that is ingested). A large amount of the ingested energy (food) is spent to support metabolic activities, and most of it is lost as heat.\nThe rule of 10 can be represented graphically by the ecological pyramid of energy, in which each ascending level is only 10% of the nearest lower one. See examples (energy is expressed as KCalories or KJoules):\nhttp://www.bio.miami.edu/dana/160/pyramid.gif\nhttp://personal.bgsu.edu/~svessey/biology-101/graphics/image3.gif\n\nMore on energetic efficiency and rule of 10:\nhttp://www.biology.iupui.edu/biocourses/N100H/ch41eco.html\nhttp://courses.washington.edu/anth457/energy.htm
386299
Enthalpy is a quantifiable state function, and the total enthalpy of a system cannot be measured directly; the enthalpy change of a system is measured instead. Enthalpy is a thermodynamic potential, and is useful particularly for nearly-constant pressure processes, where any energy input to the system must go into internal energy or the mechanical work of expanding the system. The change in enthalpy of a system is nearly singularly meaningful for systems at constant pressure, when the change in enthalpy is equivalent to heat. Otherwise, there is no easily-interpreted meaning for this state function. as heat of the reaction for reactions performed at constant pressure. For a simple system, with a constant number of particles, the difference in enthalpy is the maximum amount of thermal energy derivable from a thermodynamic process in which the pressure is held constant.
539322
Learn the theory.  Especially 5-element theory since everything is based on that. Without an understanding of the relations between the elements you can not further your understanding of internal alchemy in relation to medicine.  \nI'm not qualified as such to really say much more but feel free to contact me for informal info and links.  Take care x
193839
It might be worth thinking about entropy.  \n\nIf you take a system that has Chlorine molecules together and Oil molecules then the system is more chaotic with Chlorine and Oil randomly mixed so the driving force is increased chaos (although you have a gas going to a gas dissolved in a liquid the chaos of the total system may increase)\n\nHowever on a molecular level, it does seem confusing, to work out the arrangement. it would be important to look at the magnitude of the VDW forces between Oil-Oil chains and their usual form, and the net benefit of the VDW forces between Oil and CL and the added entropic element.
1089975
homeostasis is the underlying theme of all of nature and IMPLIES interdependence.  Most current anatomy-physiology textbooks FINALLY list how each system affects all the other systems of the body.  We use Tortora and Dickerson and the last page of each chapter itemizes all this.  Very helpful to teach the interconnectedness of the systems, yes, but also all of life-the cosmos.  It's all connected and interdependent from micro sub-atomic particles to macro galaxies and cosmos.
501359
yeaaaaah\n\nit's "expand and rise"\nthe energy (heat) supplied to it causes the individual molecules to have more energy and because of it, they expand further, and rise since density is lowered and volume is increased
171647
It depends on the situation.  The basic equation for entropy that arose out of the study of thermodynamics is\n\nDEL S = DEL Qr /T\n\nwhere DEL S is the change in entropy of the system, and DEL Qr is the heat transferred to or from the system in a reversible process.  This actually is one definition of entropy.\n\nAnother definition of entropy, which is actually equivalent to the above, is that which arose out of statistical mechanics.  \n\nS = Kb ln(W)\n\nwhere Kb is Boltzman's constant, ln is the natural logarithm, and W is the probability that the system has a particular configuration.
184337
You should re-ask.  Do you mean strength or heat or both?  We also produce electricity and build chemicals that store energy.  You need to define output better.
374218
not an exact science. has to do with dominant and recessive genes. which ever the genes fit together will determine the output. Like Punnet Squares. Could be shorter, in the middle, or taller than both of you.
234957
Check out this site: http://www.questconsult.com/~jrm/enthpres.html\n\nUse the component id for oxygen (28) and mole fraction (1.00), press submit form. Makes a nice Enthalpy-Pressure diagram.