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11.1 Temperature. What is temperature?. Temperature. hotness or coldness of a material. where the heat should flow higher temperature to lower temperature. Length, Mass, Temperature m = length g = Mass ? = Temperature Fahrenheit Celsius Kelvin. 11.1.1 Temperature Scales.

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11.1 Temperature

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11.1 Temperature


What is temperature?


Temperature

  • hotness or coldness of a material.

  • where the heat should flow

  • higher temperature to lower temperature


  • Length, Mass, Temperature

  • m = length

  • g = Mass

  • ? = Temperature

    • Fahrenheit

    • Celsius

    • Kelvin


11.1.1 Temperature Scales


The scientists …

Daniel Gabriel Fahrenheit

Anders Celsius

Lord William Thomson Kelvin


11.1.1.1 The Fahrenheit Scale


Daniel

Gabriel

Fahrenheit


11.1.1.2 The Centigrade or Celsius Scale


Anders Celsius


11.1.1.3 The Kelvin Scale


Lord William Thomson Kelvin

Absolute Scale


11.1.1.4 Temperature Conversions


Formulas


Example 1

An ordinary room temperature in the Philippines, 26.0°C, in °F?

Solution: Using the formula

then substitute


Example 2

A body temperature of 98.6°F in Celsius?

Solution: Using the formula

then substitute


Example 3

Very cool day in Baguio City, 14.0°C in Kelvin?

Solution: Using the formula

then substitute


Now, it’s your turn.

Problem:Express normal body temperature, 98.6°F, in °C and K.


SolutionThe Fahrenheit to Celsius conversion equation may be expressed in this form:

To solve for Celsius:

°C = (98.6 °F – 32) x 5/9

°C = (66.6) x 5/9

°C = 37.0

To solve for Kelvin:K = °C +273K = 37.0 + 273K = 310


wew

Answer98.6 °F is equal to 37.0°C and 310 K


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