What is Temperature?
Temperature is the measurement of how hot or how cold something is. Most temperature is measured on a thermometer using the Celsius or Fahrenheit scale, but there is also a Kelvin scale.
When using the Celsius and Fahrenheit scales, the normal temperature for freezing is 32 degrees Fahrenheit or 0 degrees Celsius. The point at which water will boil is 100 degrees Celsius or 212 degrees Fahrenheit.
How to convert temperature
In order to convert Fahrenheit to Celsius or Celsius to Fahrenheit use the formula:
For example - Convert 35°F to °C.
To do this use the same formula and solve for °C.
35 °F = °C x 9/5 + 32
Subtract 32 from both sides.
35 - 32 = °C x 9/5 + 32 - 32
3 = °C x 9/5
Now multiply both sides by 5/9 to get °C by itself.
3 x (5/9) = °C x 9/5(5/9)
15/9 = °C
1.67 = °C
Therefore, 35°F = 1.67 °C
Converting Fahrenheit to Kelvin:
In order to convert Fahrenheit to Kelvin or Kelvin to Fahrenheit use the formula:
K = (°F + 459.67) x 5/9
Examples:
Convert 76 °F to Kelvin
K = (76 + 459.67) x 5/9
K = (535.67)5/9
K= 297.59 K
Therefore, 76 °F = 297.59 K
Converting Celsius to Kelvin:
In order to convert Celsius to Kelvin or Kelvin to Celsius use the formula:
K = °C + 273.15
Examples:
1. ) Convert 17 °C to Kelvin
K = 17 + 273.15
K = 290.15
Therefore, 17 °C = 290.15 K
Sample Math Problems
Question 1:
Convert 30 °C to Fahrenheit.
Answer:
Use the formula:
F = (C x 9/5) + 32
F = (C x 9/5) + 32
Now plug in the given information and solve for degrees Fahrenheit.
°F = 30 x (9/5) + 32
°F = 54 + 32
°F = 86
30°C = 86 °F
Question 2:
Convert 77 °F to Celsius.
Answer:
Use the formula:
F = (C x 9/5) + 32
Now plug in the given information and solve for degrees Celsius.
Now plug in the given information and solve for degrees Celsius.
77 = °C x (9/5) + 32
Subtract 32 from both sides.
45 = °C x (9/5)
Multiply both sides by (5/9)
25 = °C
77°F = 25 °C
Question 3:
Convert 92 °F to Kelvin.
Answer:
Use the formula:
K = (°F + 459.67) x 5/9
Now plug in the given information and solve for Kelvin.
K = (92 + 459.67) x 5/9
K = 306.48
92°F = 306.48 K
Question 4:
Adam was heating water on a stove. He checked the temperature of the water after some time and found it to be 35°C. What was the temperature in °F?
Answer:
Use the formula:
F = (C x 9/5) + 32
Now plug in the given information and solve for degrees Fahrenheit.
°F = 35 x (9/5) + 32
°F = 63 + 32
°F = 95
35°C = 95 °F
The water is now 95 °F.
