Furthermore, it includes the entropy of the system and the entropy of the surroundings.īesides, there are many equations to calculate entropy:ġ. Also, scientists have concluded that in a spontaneous process the entropy of process must increase. Moreover, the entropy of solid (particle are closely packed) is more in comparison to the gas (particles are free to move). Entropy FormulaĮntropy is a thermodynamic function that we use to measure uncertainty or disorder of a system. In addition, some microscope process is reversible. Besides, some other example of changeable phase is the melting of metals. On the other hand, blowing a building, frying an egg is an unalterable change. Moreover, when the process is unalterable then the entropy will increase.įor example, watching a movie is a changeable process because you can watch the movie from backward. Also, even when the cyclic process is changeable then the entropy will not change. The second law of thermodynamics says that every process involves a cycle and the entropy of the system will either stay the same or increase. Get the huge list of Physics Formulas here The Second Law of Thermodynamics Furthermore, the more you increase the ball the more ways it can be arranged. So, now you can arrange the balls in two ways. After some time you put another ball on the table. As the hot water cools down from 24 ° C to 22 ° C, an amount of heat equal to Q mc T (50 kg ) (1 kcal / kg K) ( 2 ° C) 100 kcal flows out of the hot water. Moreover, the question here is in how many ways you can arrange this ball? The answer is one. In another example, you grab a ball and put it on a table. So, what will happen next? We all know that the smell will spread in the entire room and the perfume molecule will eventually fill the room. ![]() ![]() Suppose you sprayed perfume in one corner of the room. ![]() Furthermore, we can understand it more easily with the help of an example. Moreover, the higher the entropy the more disordered the system will become. Entropy refers to the number of ways in which a system can be arranged.
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