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With what maximum precision a change in temperature can be measured ? Is there any limit to the measurement of precision in change of temperature ?

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Final answer:

The maximum precision in temperature measurement is theoretically very high but practically limited. Temperature measurement is based on scales like Kelvin, Celsius, and Fahrenheit, and is influenced by physical properties and quantum limitations like the Heisenberg uncertainty principle.

Step-by-step explanation:

The question of maximum precision in measuring temperature change touches on the limits of physical measurement and the behavior of thermodynamic systems. Precision in temperature measurement can theoretically be extremely high, but in practice, it is limited by the characteristics of the thermometers and the physical properties of the systems being measured. The Kelvin scale, which starts at absolute zero (0 K), Celsius (°C), and Fahrenheit (°F) are the common temperature scales used. Precision is influenced by the expansion and contraction of the thermometer's material and by factors such as measurement uncertainty and the Heisenberg uncertainty principle, mainly when considering submicroscopic systems.

Several physical quantities are affected by temperature change, such as volume, pressure, and state of matter (solid, liquid, gas), due to the process of thermal expansion. The choice of material for a thermometer is influenced by its specific heat and thermal conductivity, which determines how quickly and responsively the material reacts to temperature changes. Furthermore, the absolute zero temperature theoretically represents a limit where the thermal motion of particles in matter would be minimal; however, reaching absolute zero is a practical impossibility due to the Third Law of Thermodynamics.

With modern scientific tools, the measurement of temperature can be incredibly precise but is subject to limitations. For example, precision thermometers based on electrical resistance, such as Pt100 sensors, can measure changes in temperature to a fraction of a degree. On the microscopic scale, measurement becomes more challenging due to quantum effects that introduce fundamental limits to the precision with which certain properties can be known - as suggested by the Heisenberg uncertainty principle.

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