Home Thermodynamics

# Thermodynamics

### Heat transfer (heat transport)

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Heat transfer is the transport of thermal energy from a warmer object to a cooler object. A distinction is made between thermal convection, thermal conduction and thermal radiation. You...

### Stefan–Boltzmann law

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This article provides answers to the following questions, among others: What dows the Stefan-Boltzmann law state?What does Kirchhoff's law of thermal radiation state?Why are blackbodies ideal...

### Internal energy & heat capacity

This article provides answers to the following questions, among others: What is the internal energy of a gas?What are the characteristics of the thermal...

### Derivation of the Maxwell-Boltzmann distribution function

The Maxwell-Boltzmann distribution function of the molecular speed of ideal gases can be derived from the barometric formula. This article shows the derivation.

### Equipartition theorem

This article provides answers to the following questions, among others: What statement does the equipartition theorem provide?What is a degree of freedom in the thermodynamic sense?Why...

### How does a thermal imaging camera work?

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This article provides answers to the following questions, among others: How do thermal imaging cameras work?Why is the thermal image displayed in false colors?

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### How does a thermocouple work?

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This article provides answers to the following questions, among others: How does a thermocouple work?What is the Seebeck effect?What are the differences between the types of...

### How does a resistance temperature detector (resistance thermometer) work?

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This article provides answers to the following questions, among others: How do resistance thermometers work?Why should the measurement current for an RTD be as low as...

### How does a vapour pressure thermometer (vapour-in-metal) work?

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This article provides answers to the following questions, among others: How do vapor pressure thermometers work?Why do vapor pressure thermometers have a non-linear scale?

### How does a gas filled thermometer (gas-in-metal) work?

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This article provides answers to the following questions, among others: How do gas filled thermometers work?What are the advantages of gas-in-metal thermometers compared to liquid-in-metal...

### How does a liquid filled thermometer (liquid-in-metal) work?

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This article provides answers to the following questions, among others: How do a liquid-in-metal thermometers work?Why should the inner diameter of the coiled tube be kept...

### How does a bimetallic strip thermometer work?

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This article provides answers to the following questions, among others: How do bimetal thermometers work?Why is the bimetal wrapped into a spiral or a helix?Why are...

### How does a liquid-in-glass thermometer work?

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This article provides answers to the following questions, among others: How do liquid thermometers work?What properties must thermometric liquids have?Why is mercury hardly used as a...

### Determination of the speed distribution in a gas

This article provides answers to the following questions, among others: How can the speeds of the particles in a gas be determined experimentally?What is a histogram?What...

### Pressure and temperature

This article provides answers to the following questions, among others: What is the kinetic theory of gases?What are the assumptions on which the kinetic theory of...

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### Why do liquids evaporate?

This article provides answers to the following questions, among others: How can the evaporation of liquids be explained?Why does a cooling effect occur during evaporation?Why does...

### Temperature scales

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This article provides answers to the following questions, among others: What is temperature in the physical sense a measure for?Which reference points are used as the...

### Temperature and particle motion

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This article provides answers to the following questions, among others: What is the general relationship between the temperature and the particle movement of a substance?Why does...

### Particle model of matter

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This article provides answers to the following questions, among others: What is the particle model of matter?How can the solid, liquid and gaseous states of...