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8thermal

# 8thermal - Temperature Temperature is that property of a...

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Temperature Temperature is that property of a body of matter that gives rise to sensations of hot and cold; it is a measure of average molecular kinetic energy. Heat is molecular kinetic energy. The color of an object hot enough to glow varies with its temperature roughly as shown here.

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Thermometers A thermometer is a device for measuring temperature. In the Celsius scale, the freezing point of water is given at the value of 0°C and the boiling point of water the value 100°C. In the Fahrenheit scale, these temperatures are given the values 32°F and 212°F.
A liquid-in-glass thermometer: Mercury or a colored alcohol solution responds to temperature changes to a greater extent than glass does, and so the length of the liquid column is a measure of the temperature of the thermometer bulb.

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Temperature scales: Common temperature scales are: Fahrenheit (F), Celsius (C ), and Kelvin (K). T C = 5/9 (T F -32) T F = 9/5 T C + 32 T K = T C +273 Exercise: At what temperature will the Fahrenheit and Centigrade scales yield the same numerical value?
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