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Conversion of temperature is the process of changing the value of temperature from one unit to another. There are many methods of conversion of temperature, among them Kelvin, Celsius and Fahrenheit are the most frequently used methods. According to the Kelvin scale, the freezing point of water is 273.15K and the boiling point is 373.15K and according to the Fahrenheit scale, the freezing point of water is 32°F and the boiling point is 212°F. In the same way, according to the Celsius temperature scale, the freezing point of water is 0°C and the boiling point is 100°C.

The Celsius scale is also called the centigrade scale, and it is based on 0° C for the freezing point and 100° C for the boiling point of water. Initially, On the Celsius scale, 0° is used to denote the boiling point of water and 100° C to denote the freezing point of water. Further, these values were inverted 0° for the freezing point and 100° for the boiling point of water. This form of scale gained widespread use all over the world.

This scale is based on 32° for the freezing point of the water and 212° for the boiling point of the water, the interval between the freezing point and the boiling point in being divided into 180 equal parts. The Fahrenheit temperature scale was first introduced in the 18th century by a German physicist named Daniel Gabriel Fahrenheit. Initially, he selected zero of his scale, as the temperature of the ice salt mixture. And then selected the values of 30° and 90° for the freezing point of water and normal body temperature, Later they were revised to 32° and 96°. But, the final scale requires an adjustment to 98.6° for the latter value.

The Fahrenheit scale is used in the US and the Celsius or centigrade scale is used in most of the other countries, for scientific purposes worldwide. The conversion formula for a temperature that is expressed on the Celsius (°C) scale to its Fahrenheit (°F) formula is given below:

°F = (9/5 × °C) + 32.

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An interactive thermometer consists of the accompanying measures to illustrate the temperature as shown in the above figure. The scale is shown in both Celsius and Fahrenheit readings on either side. This ranges from 100°C to -40°C and is marked in intervals of ten degrees. A slider is dragged in the interactive thermometer to alter the measure. And note that the red ‘mercury’ level does not raise or lower on the interactive.

Temperature Conversion Formulas

There are mainly three types of temperature conversion given below:

Conversion Between Celsius and Kelvin

Conversion Between Fahrenheit and Kelvin

Conversion Between Celsius and Fahrenheit

The formula used to convert temperature from Celsius to Kelvin is K = C + 273.15.

The formula used to convert temperature from Kelvin to Celcius is C = K − 273.15.

The conversion of the temperature from Fahrenheit to Celsius formula is C = (F − 32) × 5 ⁄ 9.

conversion of the temperature from Celsius to Fahrenheit formula is F = C(9 ⁄ 5) + 32.

The formula used to convert temperature from Fahrenheit to Kelvin is, K = (F − 32) × 5 ⁄ 9 + 273.15.

The formula used to convert temperature from Kelvin to Fahrenheit is, F = (K – 273.15) × 9 ⁄ 5 + 32.

Question 1: What is 30°C in Kelvin?

Solution:

The formula used to convert temperature from Celsius to Kelvin is, K = C + 273.15

K = 30 + 273.15 K = 303.15

Question 2: Convert 50°C to °F.

Solution:

Celsius to Fahrenheit conversion formula is given by:

°F = °C(9 / 5) + 32

= 50 (9 / 5) + 32

= 90 + 32

= 122

Therefore, 50°C = 122°F

Question 3: Convert 113°F to Kelvin.

Solution:

Fahrenheit to Kelvin conversion formula is given by:

K = (F − 32) × 5 / 9 + 273.15

= (113 – 32) × (5 / 9) + 273.15

= 81 × (5 / 9) + 273.15

= 45 + 273.15

= 318.15

Therefore, 113°F = 318.15 K

Question 4: Convert 225 K to Celsius.

Solution:

Kelvin to Celsius conversion formula is given by:

C = K – 273.15

= 225 – 273.15

= -48.15

Therefore, 225 K = -48.15°C

FAQ (Frequently Asked Questions)

1. How Can I Check Room Temperature on My Phone?

Answer. There are several applications available on the play store (on android devices), which uses the temperature sensor on your smartphone to determine the temperature of your room. Most of the temperature measuring apps will have a section, from where we can select ambient temperature reading for the room.

2. How Do You Convert Degrees Celsius to Fahrenheit and Kelvin?

Answer. The basic formula used to convert Celsius to Kelvin scale is °C + 273.15 = K. and the basic formula used for Fahrenheit to Celsius conversion is (°F − 32) × 5/9 = °C. Further to convert Fahrenheit degrees into Kelvins the formula used is, (°F − 32) × 5/9 + 273.15 = K.