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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.
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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.
Could you review the laws of thermodynamics?
Zeroth law of thermodynamics: If two systems are in thermal equilibrium with a third system, they must be in thermal equilibrium with each other. This law helps define the notion of temperature.First law of thermodynamics: Heat is a form of energy.Because energy is conserved, the internal energy of a system changes as heat flows in or out of it. Equivalently, perpetual motion machines of the first kind are impossible.Second law of thermodynamics: The entropy of any closed system not in thermal equilibrium almost always increases.Closed systems spontaneously evolve towards thermal equilibrium -- the state of maximum entropy of the system -- in a process known as "thermalization". Equivalently, perpetual motion machines of the second kind are impossible.Third law of thermodynamics: The entropy of a system approaches a constant value as the temperature approaches zero.The entropy of a system at absolute zero is typically zero, and in all cases is determined only by the number of different ground states it has
Why you study thermodynamics?
Thermodynamics is the branch of physics that deals with the study of energy transport. Thermodynamics is one of the most important sectors of mechanical engineering. The three theories of thermodynamics state that matter and energy are not created nor destroyed, they are only altered.
What are variables for the first law of thermodynamics?
the internal energy (thermal energy)
What is the transfer of thermal energy by electromagnetic waves?
Thermodynamics
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.
What is the definition of perpetual motion?
Perpetual energy is energy that is never ending. Some scientists say that there is a way to redefine the laws of thermodynamics, creating what is known as hypothetical machines that produce indefinite amounts of energy.
What are those accessories or equipments involved in Perpetual Motion Machine?
Perpetual motion machines do not exist. If they did we would not be paying almost $3.00/gallon for gasoline, as a perpetual motion machine implies free energy. Newton's laws tell us that is not possible. For further explanation read up on Newton's laws of motion and thermodynamics
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.
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.
Who invented perpetual motion machines?
Perpetual motion machines are theoretical only. No one has actually invented one. A perpetual motion machine would have to be able to provide its own source of energy to continue operating.
How can an induction motor act as perpetual motion machine?
Perpetual motion machines are an impossibility. Energy conversion is never 100% efficient. Even if it were, friction is never zero.
Could you review the laws of thermodynamics?
Zeroth law of thermodynamics: If two systems are in thermal equilibrium with a third system, they must be in thermal equilibrium with each other. This law helps define the notion of temperature.First law of thermodynamics: Heat is a form of energy.Because energy is conserved, the internal energy of a system changes as heat flows in or out of it. Equivalently, perpetual motion machines of the first kind are impossible.Second law of thermodynamics: The entropy of any closed system not in thermal equilibrium almost always increases.Closed systems spontaneously evolve towards thermal equilibrium -- the state of maximum entropy of the system -- in a process known as "thermalization". Equivalently, perpetual motion machines of the second kind are impossible.Third law of thermodynamics: The entropy of a system approaches a constant value as the temperature approaches zero.The entropy of a system at absolute zero is typically zero, and in all cases is determined only by the number of different ground states it has
Which machines change one energy to another?
This would be called a "perpetual motion machine", but they don't exist.
Has anyone created a perpetual motion machine yet?
No, perpetual motion is prohibited by the laws of thermodynamics.There are machines that might at first seem to be perpetual motion machines but only because their source of energy may not be readily apparent.add. But in economics, inflation serves the purpose of a perpetual motion machine, in which more currency is created continuously. And which serves to illustrate the reality of economics.
Is perpetual motion theoretically possible using gravity as a constant source of energy?
No. Perpetual motion is equivalent to "infinite energy", and is not the first law of thermodynamics "Mass-energy is neither created nor destroyed"? You would have to do at least the same amount of work lifting objects up against gravity as you would get out of the system from gravity.
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.
