11.1 Temperature

What is temperature?

hotness or coldness of a material.

where the heat should flow higher temperature to lower

temperature

Temperature

Length, Mass, Temperaturem = lengthg = Mass? = Temperature

FahrenheitCelsiusKelvin

11.1.1 Temperature Scales

The scientists …

Daniel Gabriel Fahrenheit

Anders CelsiusLord William Thomson Kelvin

11.1.1.1 The Fahrenheit

Scale

Daniel Gabriel

Fahrenheit

11.1.1.2 The Centigrade or Celsius Scale

Anders Celsiu

s

11.1.1.3 The Kelvin

Scale

Lord William

Thomson Kelvin

Absolute Scale

11.1.1.4 Temperature Conversions

Formulas

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

Solution: Using the formulathen substitute

Example 1

A body temperature of 98.6°F in Celsius?

Solution: Using the formula

then substitute

Example 2

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

Solution: Using the formula then

substitute

Example 3

Problem:

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

Now, it’s your turn.

Solution

The 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

Answer

98.6 °F is equal to 37.0°C and 310 K

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