can anybody explain me about "entropy" in simple way ?

Answer 1

dS = dQ / T

Answer 2

The concept of thermodynamic entropy is central to the second law of thermodynamics, which deals with physical processes and whether they occur spontaneously. In a general sense the second law says that temperature differences between systems in contact with each other tend to even out and that work can be obtained from these non-equilibrium differences, but that loss of heat occurs, in the form of entropy, when work is done.

The concept of energy is central to the first law of thermodynamics, which deals with the conservation of energy and under which the loss in heat will result in a decrease in the internal energy of the thermodynamic system. Thermodynamic entropy provides a comparative measure of the amount of this decrease in internal energy of the system and the corresponding increase in internal energy of the surroundings at a given temperature. A simple and more concrete visualisation of the second law is that energy of all types changes from being localized to becoming dispersed or spread out, if it is not hindered from doing so. Entropy change is the quantitative measure of that kind of a spontaneous process: how much energy has flowed or how widely it has become spread out at a specific temperature.

Entropy has been developed to describe any of several phenomena, depending on the field and the context in which it is being used. Information entropy takes the mathematical concepts of statistical thermodynamics into areas of probability theory unconnected with heat and energy.

Answer 3

Entropy means energetic unavailability. if the energy is unavailable (unusable, untransferable) then entropy is high.

Here are two systems that contain the exact same amount of energy but different amounts of entropy. Entropy asks the question "can the energy here be transfered to there?"

system one. a single piece of white hot steel at 2000 degrees.
system two. many pieces (however many pieces it takes to equal the energy of system one) of steel at 20 degrees.
both systems contain the exact same amount of heat energy. but they dont contain the same entropy. heat doesnt flow well when the temperature of two things touching are close. that makes the heat energy unusable, untranferable, disordered in the second system. the first system can be dropped into a sealed tank of zero degree water and make high pressure steam. the steam could be piped to a stean generator and generate a lot of electricity. energy of the hot steel was transfered to the water and then to the steam turbine. the second system has just as much energy in it as the first one but if put in zero degree water it cannot boil the water into high pressure steam.

Answer 4

To put it simply, its the natural desire for all things to want to fall apart. However, different things have different levels of entropy. Example, a cinder block may want to be in smaller pieces but it can't easily do so. But, if you have a jar full of marbles and it tips over, all of the marbles want to roll away from each other. Entropy is a measurement of disorder or randomness.

Answer 5

The theory of entropy basically says that the universe is winding down. Energy flows from a high energy source to a lower energy object; it does not spontaneously flow the other way.

(By the way, entropy is one of the reasons evolution cannot be true....!)

Answer 6

Islamic stance on evolution is somewhat complicated and sophisticated. i will attempt to make it so trouble-free as achievable. those scholars of Islam who declare that Islam and evolution in good condition base their case on some verses from Qur'an (you likely ran for the era of them on an identical time as analyzing those long articles, so i will pass the reproduction&paste) the place it rather is asserted that - in trouble-free words - Allah did create Adam and Eve, yet in 2 stages. Now they hang to those ''2 stages'' and make contact with them evolution. So in a fashion i will work out how they are properly matched. yet on the comparable time it denies Darwin's concept and in assessment to a pair rather sensible human beings have reported right here *eyeroll* Darwin's concept would not declare that we developed FROM monkeys, yet in basic terms that we share the complication-loose ancestor with apes (there's a distinction between an ape and a monkey, human beings). Now, i'm no longer one hundred% valuable no count if Qur'an claims that Allah created people first and then animals and vegetation (yet i think of it rather is the case, you examine it out in basic terms in case), yet whilst it does then it rather is incompatible with Darwin's concept.