On the right, kB is called a indefinite Boltzman and Omega (Oh) is the number of possible “microsties”. Let me explain: let’s say I have four coins and four people. How many different ways can I share these coins? Well, two extreme cases would be such that everyone will get one coin or that all four coins go to one person. In total, there are 35 possible schedules. These are microstats (Oh). So you can think about them as possible energy systems between molecules, maintaining the same energy.
If I drop the basketball, its gravitational potential energy decreases as the kinetic energy increases – general energy is preserved. But it doesn’t bounce as high as it started. This is because some energy leaks as a heat on the impact. The ball warms up a little. When we include this heat energy, we find that energy is still preserved. But entropy is higher.
But what if the ball gets cooler and bounced off higher? This would mean that thermal energy is reduced and kinetic energy is growing. Energy by Still Keep, but in this result entropy is reduced. This is actually possible, but you can conduct this experiment until the end of the time and never get this result.
Here is another fun example. Imagine put ice in a glass of sultry water. Is it possible that the water becomes warmer and the ice is colder? Again, the probability is non -zero, but it is clearly unlikely. The Boltzmann formula says that the more possible the microstans are, the greater the entropy.
Ultimately, this leads to the second right of thermodynamics, which states that the total entropy of a closed system can raise only over time, or at least never decrease. So, your desk will only become more mess and mess, unless you open this “system” and do “work” – what, remember, means adding energy. Unfortunately, the universe is a really isolated system, so it can only end one way – in the complete loss of the entire structure and life.
4. Ohm law
Thanks to the kindness of Rhett Allen
This equation is used in many of our newfangled devices because it deals with electricity. OHMA law gives a relationship between a change in potential electric energy (Δv) in some elements in the circuit and electric current (AND) Passing through this element. Because the saying “change of electrical potential” is tiring, we often call it “tension”, as is measured in volts. The constant proportionality between voltage and current is called resistance (R); No wonder that you are measured in the Discuss units.