Experimental Determination of Absolute Zero Temperature

Ivanov, Dragia

doi:10.1119/1.1557508

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…Moreover, there is a contemporary tendency the new Kelvin to be performed by measurements of electric fluctuations and it is nice and useful high-school students to become familiar with what actually temperature is and the world in which they will live. From methodical point of view it will be nice together with electric demonstration of absolute temperature to be performed a demonstration with ideal gasses, see for example reference [36]. At fixed density n of the particles the pressure p of an ideal gas is proportional to the temperature p = nT.…”

Section: Discussionmentioning

confidence: 99%

“…It should be mentioned that described method is not the first simple estimate of the determination of the absolute zero temperature. From a long time simple demonstration is to use the ideal gas relationship for the pressure P and volume P Ṽ = ν RT in many cases [36], for the definition of the new Kelvin, for example. However, the purpose of the present study is not to design a thermometer but to demonstrate thermal fluctuations.…”

Section: Determination Of the Absolute Zeromentioning

confidence: 99%

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Set-up for observation thermal voltage noise and determination of absolute temperature and Boltzmann constant

Mishonov¹,

Serafimov²,

Petkov³

et al. 2022

Eur. J. Phys.

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We describe a set-up for measurement of the absolute zero by Johnson–Nyquist thermal noise which can be performed within a week in every high-school or university. Necessary electronic components and technical guidelines for the construction of this noise thermometer are given. The operating temperature used is in the tea cup range from ice to boiling water and in this sense the set-up can be given in the hands of every high school and university physics student. The measurement requires a standard multi-meter with thermocouple and voltage probe and gives excellent for education purposes percent accuracy. The explanation is oriented to university level but due to the simplicity of the explanation motivated high-school students can follow the explanation derivation of the used formulas for determination of the absolute zero and the Boltzmann constant. As a by-product our set-up gives a new method for the determination of the spectral density of the voltage e N and current noise i N of operational amplifiers.

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Section: Discussionmentioning

confidence: 99%

Section: Determination Of the Absolute Zeromentioning

confidence: 99%

Set-up for observation thermal voltage noise and determination of absolute temperature and Boltzmann constant

Mishonov¹,

Serafimov²,

Petkov³

et al. 2022

Eur. J. Phys.

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“…There are many laboratory experiments for determining the absolute zero temperature that are used in physics and chemistry teaching laboratories. Most of them are based on isobaric processes [10][11][12][13][14][15][16], while isochoric processes are considered in fewer cases [17].…”

Section: Determination Of the Absolute Zero Temperature By Means Of T...mentioning

confidence: 99%

Mechanical sensors and plastic syringes to verify the gas laws without neglecting friction

Onorato¹,

Mascheretti²,

Ambrosis³

2010

Phys. Educ.

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Two experiments are proposed to study Boyle's law and the pressure law in a school laboratory. The peculiar feature of the experiments is that the value of the pressure and of the volume are obtained respectively by means of a force and a position sensor, thus allowing students to connect, in an experimental context, mechanics variables, such as force and position, to thermodynamics ones, such as pressure and volume. Focusing on forces requires that students take into account the role of the friction force on the plunger, a force that is generally disregarded in standard experiments. Considering friction forces helps students to realize the complexity of a real experiment and appreciate the value and the limits of a quantitative measurement.

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“…In many places, however, liquid nitrogen can be expensive and difficult to find, making this kind of experiment difficult to perform. Alternatively, there are also approaches to measure the absolute zero temperature involving speed of sound and expansion of gas [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Determination of absolute zero temperature from thermistor voltage noise

Pruttivarasin

2020

Eur. J. Phys.

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We present a simple experiment to determine absolute zero temperature by measuring the Johnson noise of a thermistor. Using the thermistor itself as a temperature sensor, we measure the thermistor voltage noise at different temperatures by submerging the thermistor in hot and cold water contained in a thermally insulated cup. A linear fit of the data yields an absolute zero temperature of −274 ± 14 °C, agreeing with the accepted value. The experiment is simple enough to be performed at most universities as a part of an undergraduate experimental physics course.

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Experimental Determination of Absolute Zero Temperature

Cited by 4 publications

References 8 publications

Set-up for observation thermal voltage noise and determination of absolute temperature and Boltzmann constant

Set-up for observation thermal voltage noise and determination of absolute temperature and Boltzmann constant

Mechanical sensors and plastic syringes to verify the gas laws without neglecting friction

Determination of absolute zero temperature from thermistor voltage noise

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