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Temperature & Heat: Temperature
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Temperature
Measure of the hotness or coldness of a body
Scalar quantity
Units
SI unit - Kelvin (K)
Degree Celsius (ºC)
Both units are the same size and there is a fixed relationship between them
Celsius scale
The two fixed points are the melting point of pure ice and the boiling point of pure water at atmospheric pressure
This interval is divided into 100 equal parts
Kelvin scale
The two fixed points are absolute zero and 0 ºC
Interval is the same size as the degree Celsius
0 K = -273.15 ºC
Thermometric Property
A physical property that changes measurably with temperature
Length of liquid column (e.g. thermometer)
Emf of thermocouple
Pressure of gas at constant volume
Volume of gas at constant pressure
Resistance
Colour
Calibration Curve
A graph of the thermometric property against temperature, measures with the laboratory standard thermometer
The new thermometer can be used by noting the value of the thermometric property at an unknown temperature
The graph is then used to find the corresponding temperature
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Informações
- Descrição
- This note provides a more in depth knowledge of the topic of temperature. It covers units used to measure temperature and the two different scales used. it also discusses calibration curves and thermometric properties.
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- tatemae.honne
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- Criado por alex.examtime9373 · 21 jan 2014
- Copiado por tatemae.honne · 21 jan 2014
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