1. Honors Chemistry Unit I - Power Point 6
Temperature Conversions
Sections 1.7

2. Temperature Scales Three Systems for Measuring Temperature
Fahrenheit
Celsius
Kelvin
Anders Celsius
Gabriel Fahrenheit
Lord Kelvin
(William Thomson)

3. The Three Major Temperature Scales
Notice that 1 kelvin = 1 degree Celsius

4. Converting Between Scales

5. Calculations Using Temperature
Generally require temp’s in kelvins
T (K) = t (˚C)
Body temp = 37 ˚C = 310 K

6. Temperature Conversions
A person with hypothermia has a body temperature of 29.1°C. What is the body temperature in °F?
°F = 9/5 (29.1°C) =
= 84.4°F

7. Learning Check
The normal temperature of a chickadee is 105.8°F. What is that temperature in °C?
1) °C
2) °C
3) °C
Answer: 41 °C

8. Learning Check Pizza is baked at 235 °C . What is that in °F?
Answer: 455 °F

9. Exercise At what temperature does C = F?
The answer is -40. Since °C equals °F, they both should be the same value (designated as variable x). Use one of the conversion equations such as °C = (°F-32)(5/9), and substitute in the value of x for both °C and °F. Solve for x.

10. Solution
Since °C equals °F, they both should be the same value (designated as variable x).
Use one of the conversion equations such as:
Substitute in the value of x for both TC and TF. Solve for x.

11. Solution