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# 11.1 Temperature - PowerPoint PPT Presentation

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

• hotness or coldness of a material.

• where the heat should flow

• higher temperature to lower temperature

11.1.1 Temperature Scales

Daniel Gabriel Fahrenheit

Anders Celsius

Lord William Thomson Kelvin

11.1.1.1 The Fahrenheit Scale

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

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

Solution: Using the formula

then substitute

A body temperature of 98.6°F in Celsius?

Solution: Using the formula

then substitute

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

Solution: Using the formula

then substitute

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

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