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What is absolute zero and why is it impossible to achieve it?
Absolute zero is the lowest possible temperature. Basically, the closer you get to absolute zero, the harder it becomes to get even closer. However, it is possible to get very, very close - temperatures of less than a microkelvin, i.e., a millionth of a degree above absolute zero, have already been achieved.
What is path function in thermodynamics?
A path function in thermodynamics is a function whose value depends on the path taken to reach a particular state. Examples include work and heat. These functions are not solely determined by the initial and final states but also by the process followed.
Can space reach absolute zero?
NO, this is impossible. 0 K, or -273 *C can never be reached. In deep space, it can be 0.1 K or so, which is really cold. Heat 'spreads' from a hotter place to a colder, so if there were ever a place with absolute zero, some heat would immediately go there. Then, that point would probably reach a point possibly just above absolute zero.
Why is absolute zero unattainable?
To lower the temperature, you have to move heat from warmer to colder. If you were trying to cool something down to absolute zero, you would have to have a sink that was even colder. Absolute zero is a state where all the energy has been removed - and you can't get less than no energy, so you can't have a sink to absorb energy from something above absolute zero to reduce it to absolute zero. ... there are other explanations, but I've observed that this one is often the easiest for people to grasp.
What is the lowest temperature that can be attained by matter?
Zero degrees Kelvin, (approximately minus 273 degrees Celsius) which is considered the temperature at which molecules stop moving entirely. Although scientists attempt to replicate this setting in a controlled laboratory setting, it has yet to occur in such a manner.
What is the third law of thermodynamics, which states that no system can reach absolute zero temperature?
The third law of thermodynamics states that as a system approaches absolute zero temperature, its entropy approaches a minimum value. This means that it is impossible for any system to reach absolute zero temperature.
Why is it impossible to reach absolute zero?
Reaching absolute zero (-273.15 degrees Celsius) is impossible because as an object reaches lower temperatures, its atoms eventually stop moving completely, which is against the laws of physics. This would violate the Third Law of Thermodynamics, which states that it is impossible for any system to reach absolute zero in a finite number of steps.
Why is it imposible to attain the absolute zero temperature?
Attaining absolute zero temperature is impossible because it represents the complete absence of thermal energy in a system, which is practically unattainable. As thermal energy decreases, it becomes increasingly difficult to remove the last remaining trace of energy to reach absolute zero. Additionally, the third law of thermodynamics states that it is impossible to reach absolute zero through a finite number of processes.
Why is it impossible to reach absolute zero?
It is impossible to reach absolute zero because it is the lowest possible temperature in the universe, where all molecular motion stops. The laws of thermodynamics prevent any system from reaching absolute zero, as it would require an infinite amount of energy to remove all heat from a system.
Why absolute zero is a theoretical concept?
Absolute zero is a theoretical concept because reaching it would require the complete absence of all thermal energy in a system, which is practically impossible to achieve. As temperature approaches absolute zero, quantum effects become dominant and our classical understanding of physics breaks down. Additionally, the Third Law of Thermodynamics states that it is impossible to reach absolute zero through a finite number of processes.
Did scientist ever reached absolute zero?
No, nothing ever can reach absolute zero. The reasons are scientific, but the lowest we've ever gone to is 450 picokelvin (that is 0.000000000045° kelvin).The third law of http://www.answers.com/topic/thermodynamics is an axiom of nature regarding http://www.answers.com/topic/entropy and the impossibility of reaching http://www.answers.com/topic/absolute-zero of http://www.answers.com/topic/temperature.
Why might it be especially difficult for scientists to cool a substance all the way down to absolute zero?
Cooling a substance to absolute zero is challenging because as the substance gets colder, it loses energy. At absolute zero, the substance would have no thermal energy, which goes against the principles of quantum mechanics. Additionally, achieving absolute zero requires overcoming the third law of thermodynamics, which states that it is impossible to reach absolute zero through a finite number of steps.
Which law states the absolute zero cannot be reached?
The Third Law of Thermodynamics states that absolute zero, which is the lowest possible temperature, cannot be reached. This law asserts that as a system approaches absolute zero, its entropy also approaches a minimum value. This implies that it would require an infinite amount of energy to cool a system down to absolute zero, making it unattainable in practice.
Which law states absolute zero cannot be reached?
This would be a consequence of the 2nd law and the "zeroeth" law. Heat always flows from the warmer object to the colder one (2nd law), so to cool something down to absolute zero, you would have to have something colder than absolute zero to absorb the heat coming out. The zeroeth law, however, defines absolute zero as a ground state where energy has been reduced to its absolute minimum - thus you cannot go below absolute zero and thus there cannot be something to absorb the energy to take an object to system down to absolute zero.
When all atoms of an element are stopped it is absolute?
Absolute zero. This refers to the way that all molecules use theremal energy that's all around us, they use this energy to vibrate and stretch in many different ways. This is also known as entropy which is just a fancy word for disorder. Unfortunatly it is impossible to reach absolute zero due to a law that states that the total amount of entropy cannot decrease( one of the laws of thermodynamics). But in theory at absolute zero there would be no energy for the molecules to take in and turn into disorder by vibrating etc...
Would you say that a dead body would reach absolute zero?
Nope; it would never go below room temperature. It is technically impossible to reach absolute zero
What is meant by the term absolute zero Why can't an object actually be that cold?
Absolute zero is the theoretical temperature of an object that has no kinetic energy. This is 0 on the Kelvin scale which relates to -273.15oC. Nothing can actually reach this temperature as to achieve a kinetic energy of 0 Joules, the object would have to be removed from the universe entirely.
