Why PMM1 is not possible?
Q – What is PMM-1 why it is impossible? It is a Thermodynamic system that undergoes a cyclic process that produce no external affects other than the rise ( or fall) of a weight in a gravity field. This definition is against first law of thermodynamics and conservation of energy.
Why PMM1 and PMM2 is impossible?
ANSWER: perpetual motion machine of second kind (PMM2) This is due to that some heat has to be rejected to sink. Therefore this heat engine violates the Kelvin-Planck statement of second law of thermodynamics. Hence it will be a perpetual motion machine of second kind (PMM2). PMM2 is impossible to produce.
Why is PMM2 impossible?
Originally Answered: What are PMM1 and PMM2? PMM1 is Perpetual Motion Machine which violates the first law of thermodynamics,& PMM2 violates the second law & cannot exist. , M tech in mechanical engineering . A PMM1 is a hypothetical machine which delivers work continuously without consuming any kind of energy.
What is true for PMM1?
Explanation: PMM1 is the machine which violates the first law of thermodynamics that the energy can neither be created nor be destroyed. Therefore total energy of the universe is constant.
What is PMM1 explain with suitable example?
ANSWER: Perpetual Motion Machine of the First kind (PMM1) Perpetual Motion Machine is the machine which violates the law of thermodynamics. A machine, which can supply mechanical work continuously without consumption of any energy, violates the first law of thermodynamics.
What is the efficiency of PMM1?
Such machines will have efficiency 100%, or we can say that perpetual motion machines of second kind will have higher efficiency than ideal Carnot cycle and in my opinion, it is not possible.
What is the efficiency of pmm1?
Why perpetual motion machine of second kind is impossible?
Perpetual motion machine of the second kind is a machine which produces work from a single heat source. This kind of machine is impossible, since it violates the Second law of thermodynamics. Heat cannot be transferred from a colder to a hotter body.
What is PMM1 and PMM2?
Perpetual Motion Machine (PMM) of the First Kind (PMM1) would be one to violate the 1st Law of Thermodynamics, to permanently produce useful energy (work) without any energy source, or to produce more ‘energy’ than consumed (thus generate energy from nowhere); and Perpetual Motion Machine of the Second Kind (PMM2) …
What is PMM1 in thermodynamics?
Why free energy is not possible?
Free energy machines do not work. No machine can create energy out of nothing, as this would violate the law of mass-energy conservation, which is fundamental and universal. The law of mass-energy conservation states that mass-energy can never be created or destroyed.
What kind of machine is the PMM1?
PMM1 is Perpetual Motion Machine of First kind. It is a fictitious machine. There can be no machine which would continuously supply mechanical work without some other form of energy disappearing simultaneously. Work is done in a direction but Heat radiation takes place all around.
What does PMM1 stand for in scientific terms?
Perpetual Motion Machine 1 (PMM1) is a device that violates the first law of thermodynamics. PMM1 stands for Perpetual Motion Machine of first kind. It is one which creates energy from nowhere.
What is perpetual motion machine of the first kind ( PMM1 )?
Thus this machine is the Perpetual Motion Machine of the First kind (PMM1). When a machine violates the second law or third law of thermodynamics then this machine is called as PMM2 or PMM3 respectively.
How does PMM2 violate the second law of thermodynamics?
PMM2 is a fictitious machine that violates second law of thermodynamics. To produce net work in a thermodynamic cycle, heat engine has to exchange heat with two reservoir maintained at two different temperature i.e source and sink.