![]() Now, we will replace y with ☏ and x with ☌, we get: Thus, the equation of the line by the slope-intercept form is: Thus, this relationship can be found by using the equation of the straight-line formula.īy using the freezing and boiling point of water on Centigrade and Fahrenheit scales, we have the points (0, 32) and (100, 212). Since x and y are directly proportional, there is a linear relationship between x and y. Let x = the temperature on Centigrade scale and y = the temperature on the Fahrenheit scale. Celsius to Fahrenheit Formula Using Straight Lines Therefore, the formula for converting Celsius to Fahrenheit scale reduces to ☏ = ☌ × (9/5) + 32. Thus on conversion, we get ☏ = ☌ × (9/5) + 32. So, at this level (freezing point of water), the equation formed is ☏ = 9/5 × ☌ + 32. If we want to relate them using an equation form, then we need to add/subtract 32 to make both sides equal. Water freezes at 0☌ and 32☏, so the Celsius and Fahrenheit scales start with different points (0 vs 32). So, the ratio of change from C to F is 100/180 or 5/9. With the rise of temperature on the Celsius scale, the temperature on the Fahrenheit scale also rises and vice versa. Fahrenheit and Celsius are directly proportional to each other. Here, the scales rise at a different rate (100 vs 180). So, there is a difference of 100 - 0 = 100☌ in the freezing point and boiling point of water (in ☌). Similarly, the freezing point of water in Celsius is 0☌ and its boiling point is 100☌.So, there is a difference of 212 - 32 = 180☏ in the freezing point and boiling point of water (in ☏). The freezing point of water in Fahrenheit is 32☏ and its boiling point is 212☏.The size of the temperature unit and the zero point of the scale is necessary for the thermometer to give correct readings.As we are already aware of the boiling point and freezing point of water at the normal pressure on the Celsius scale as well as Fahrenheit scale, we will be using the same for the C to F formula derivation. As we can see, temperature has to be represented on some scale, and without any calibrations it is not possible to measure temperature accurately. The difference between the freezing and boiling points on the Fahrenheit scale is 180 degrees while for the centigrade scale it is 100 degrees. Most modern-day thermometers and instruments use either the Celsius or Fahrenheit scale. There is a slight difference in Celsius and centigrade scales (a difference of 0.1 degrees in readings), however, for day-to-day use, both are almost same. Shortly after the death of Andres, the name of the scale was changed to centigrade scale. As per his calibrations, 100 was the temperature at which water boiled and 0 was the temperature at which water froze. The credit for the development of Celsius scale goes to Anders Celsius, an astronomy professor in Sweden, who introduced a new temperature scale in 1741. He arrived at the number 212 to be the boiling point of water by chance. In the Fahrenheit scale, Gabriel Fahrenheit based on his recordings, experiments, and data, concluded 0 as the temperature of his mixture 32 as the temperature of water and ice and 212, as the boiling point of water. The limitations of the alcohol thermometer were overcome by the mercury thermometer. The 18th century was a significant year in the history of temperature measuring devices, when Daniel Gabriel Fahrenheit, a German instrument maker, invented the mercury and alcohol thermometers. The modern-day thermometers are based on Fahrenheit and Celsius scale units. The devices to measure temperature have been slowly developed since the times of Galileo, who first invented the documented thermometer in about 1592. Before the invention of temperature measuring devices, hot and cold could be perceived only by sensory organs. Even slight changes in the value of temperature impacts the ecological processes of the world in a significant way. If we ponder over which physical quantity is measured the most, then it would be none other than temperature. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |