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What law of thermodynamics allows perpetual energy machines?
The first law might allow a perpetual energy machine where energy is extracted from the surroundings to power the machine, but the second law explains why such a perpetual motion machine won't actually be able to work.
What is the need of the second law of thermodynamics?
Second law of thermodynamics used for prove of process reversibility, it provide the concept of system loss capability to perform work. Second law of thermodynamics is an effective tools to debunked pseudo-science in the field of perpetual energy (perpetual magnetic generator) and hoax energy saving scam.
Which situations would violate the second las of thermodynamics?
The second law of thermodynamics would be violated in situations where heat spontaneously flows from a colder object to a hotter one without any external work being done, as this contradicts the natural direction of heat transfer. Additionally, a perpetual motion machine of the second kind, which could convert thermal energy completely into mechanical work without any energy loss, would also violate this law. In essence, any scenario that suggests entropy could decrease in a closed system or that energy could be perfectly converted without loss would breach the second law.
Why pmm2 is impossible in thermodynamics?
A perpetual motion machine of the second kind (PMM2) is impossible according to the second law of thermodynamics, which states that heat cannot spontaneously flow from a colder body to a hotter body without external work. PMM2 would violate this principle by converting thermal energy from a heat reservoir into work without any loss, effectively creating energy from nothing. This contradicts the concept of entropy, which dictates that in any energy exchange, the total entropy of a system and its surroundings will either increase or remain constant, but never decrease. Thus, such a machine cannot exist.
What law of thermodynamics is unavailable for doing work?
"Unavailable for doing work" is related to the Second Law of Thermodynamics.
Why can't electric suppliers use electric motors to spin the generators?
If you are suggesting a "perpetual motion" scenerio, it would violate the first or second laws of thermodynamics. Many inventors dream of perpetual motion machines, but they are an impossible dream according to the laws of thermodynamics. The second law of thermodynamics says that an engine or process of any type must always have an efficiency of less than 100%. A perpetual motion machine that uses a generator to power the motor that runs the generator requires both the generator and motor to operate with 100% efficiency. This type of perpetual motion machine does not violate the first law of thermodynamics, but violates the second law of thermodynamics. It is a perpetual motion machine of the second kind because it violates the second law of thermodynamics. Not even the cleverest engineer or inventor can build a perpetual motion machine because it would violate either the first or second law of thermodynamics, which are fundamental laws of physics.
What is the difference between perpetual motion machines of first kind and perpetual motion machines of the second kind?
Perpetual motion machines of the first kind are hypothetical machines that violate the first or second law of thermodynamics by producing energy without any external source. Perpetual motion machines of the second kind are also hypothetical, but they generate energy by utilizing an external source and converting some of it into work without depleting the source. Both types of machines are not possible based on our current understanding of physics.
What law of thermodynamics allows perpetual energy machines?
The first law might allow a perpetual energy machine where energy is extracted from the surroundings to power the machine, but the second law explains why such a perpetual motion machine won't actually be able to work.
What is perpatual motion?
It is the idea of a machine continuously producing energy, without energy input - or producing more energy than what is put into the machine. This would violate the First Law of Thermodynamics (conservation of energy), and in general, it is not believed to be possible. No process is known which violates the conservation of energy. (A "perpetual motion machine of the second kind" would violate the Second Law of Thermodynamics; this is generally believed to be impossible, too.)
Why is imposible to create perpetual motion machine?
From the second law of thermodynamics, "It is impossible to convert heat completely into work in a cyclic process." Thus, energy in a system is gradually lost. Because of this, the energy will eventually run out (though it may take a very long time), and perpetual motion is impossible.
Why is the virtual perpetual motion machine not realistic?
A perpetual motion machine is not realistic because it violates the laws of thermodynamics, specifically the first and second laws. These laws state that energy cannot be created or destroyed, and that systems tend to move towards a state of increased entropy. Any system claiming to produce perpetual motion would go against these fundamental principles.
Do you still use perpetual motion machines today?
We have never invented a perpetual motion machine and never will. A perpetual motion machine relies on the fact that we can get as much or more energy out of a machine than we put into it. However, this is in contradiction to the Second and First Law of Thermodynamics, respectively. The First Law of Thermodynamics states that you can't get more out of a system than you can get in. This is along the lines of 'energy cannot be made, only transformed'. The Second Law of Thermodynamics states that you can't be 100% efficient; some energy will always be lost to heat. An example uses Carnot (heat) engines; it would only be 100% efficient if we could reach absolute zero, which is impossible.
Why would a perpetual motion machine not work?
A perpetual motion machine would not work because it violates the laws of thermodynamics, specifically the first and second laws. These laws dictate that energy cannot be created or destroyed, only transferred or transformed, and that in any energy transfer or transformation, there will always be some energy lost as heat. Therefore, a perpetual motion machine cannot exist as it would require continuously producing energy without any losses.
Why is a perpetual motion machine not possible?
It's not possible because it would violate one or both of the laws of thermodynamics. The first law of thermodynamics says that you can't create energy from nothing, or to out it another way, you can't get more energy out of a machine than you put into it. The second law says that no machine is 100% efficient. You must actually get less energy out of a machine than you put into it. The laws of thermodynamics apply to the entire universe and all bodies within it, including alleged perpetual motion machines.
Why are perpetual machines impossible to build?
Perpetual machines violate the first or second law of thermodynamics by creating energy out of nothing or using it in a completely efficient manner. These laws state that energy cannot be created or destroyed, and there will always be some energy lost as heat in any process. As a result, perpetual motion or perpetual machine is not feasible in reality.
Why perpetual motion don't work?
Perpetual motion machines violate the laws of thermodynamics, particularly the first and second laws. The first law states that energy cannot be created or destroyed, meaning a machine cannot generate more energy than it consumes. The second law posits that energy transformations are not 100% efficient, leading to inevitable energy loss as heat, which prevents a machine from operating indefinitely without an external energy source. Therefore, perpetual motion is impossible within the established framework of physics.
Is it possible to develop a perpetual motion machine?
Theoretically it is impossible. Many have tried and many continue to attempt to develop a perpetual motion machine. Only if there is no friction and no energy is lost to the surroundings, would perpetual motion be possible... No. Such machines are not possible, although until the end of mankind people will perpetually try to imagine or create one.
