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Why is the Kelvin temperature scale rather than the Celsius temperature scale used in science?
The celsius scale of temperature is based on the freezing and boiling point of water. This is very convenient for every day use as most things we deal with are in this range and those which are not are usually pretty close. However when you think about it the 2 defined points are pretty arbitary, they are based on the phase tranision of a single substance. OK, a pretty common substance on Earth but still just an arbitrary substance. Now for a bit of physics - What is temperature? Temperature is a measure of the average kinetic energy (energy of movement) of molecules in a substance? When things are hoter the molecules are moving faster on average, when things are colder the molecules are moving slower on average. Given that temperature is a measure of the average kinetic energy there is a more logical definition for the zero point. When the molecules have zero kinetic energy. This is the definition of zero Kelvin. Unfortunately there is no similarly logical maximum temperature. The Kelvin scale is therefore a bit of a compromise, it uses the same unit as the Centigrade scale but offsets the zero point by 273.13 degrees. None the less it is still a more logically defined unit than the Centigrade and has replaced it as the SI unit for temperature. 0'K = -273.13'C 273.13'K = 0'C 373.13'K = 100'C
What else can I help you with?
What scale boils water at 373 degree's?
Firstly, temperatures measured in Kelvin (K) are not degrees but rather, just numbers. However, 373 K is the same as 100 degrees C. At that temperature, pure water begins to boil at sea level.
What does 225 K mean as a temperature reading?
The Kelvin scale uses the same degree size as Celsius, but starts 273.15 degrees lower, at absolute zero (in Celsius zero is the freezing point of water). So Kevin temperatures have a numerical value greater by 273.15. 225 K would therefore indicate a rather cold temperature of about -48.15° C (-54.67°F).
Which group of people most often use Kelvin scale?
Yes, the Kelvin scale is very widely used in the sciences because it provides an absolute temperature scale as opposed to the relative scales like Celsius and Fahrenheit. In the world of cryogenics, particularly that of the really low temperatures, those nearer absolute zero, we see the Kelvin scale used frequently. To cite a single example, it is easier to talk about the boiling point of helium being 4.22 K rather than −268.93 °C, or −452.07 °F.
Is 37 degrees celsius old or hot?
37 degrees Celsius is considered a normal body temperature for humans. It is not old or hot, but rather a typical healthy temperature range.
What is the name of the scale used to measure temperature?
There are several scales used.Celsius, or centigrade, is the most common, being associated with the SI system of measurement. But the actual official scale is Kelvin, essentially the Celsius scale shifted to begin at absolute zero rather than the freezing point of water.In the English system, still used in the US, the scales are the Fahrenheit scale and the Rankine scale (Fahrenheit shifted to start at absolute zero). Both Celsius and Fahrenheit use the term "degrees" as their intervals, but they are, confusingly, not the same size, and a conversion to Celsius is necessary to use Fahrenheit values in a metric calculation.
Why does the percent error calculation have to be performed in celsius rather than kelvin?
That is just utter nonsense. Kelvin is the absolute scale so percentages should be calculated in Kelvin and not Celsius.
How do you use kelvin scale?
The Kelvin scale measures temperature. You can use it the same way you would use the Fahrenheit scale or the Celsius scale, but it also has an additional use. Since the Kelvin scale starts at the true zero of temperature, when there is no random thermal motion, rather than starting at some arbitrary point such as the freezing point of water (Celsius) or the coldest temperature that was obtainable in the laboratory at the time the Fahrenheit scale was first devised, you can make much more meaningful comparisons in Kelvin. If something has twice the temperature in Kelvin than something else has, then it actually is twice as hot. That is not true of other temperature scales. 20oC is not twice as hot as 10oC. But 20oK actually is twice as hot as 10oK.
Why is the kelvin scale used rather than the celsius scale?
Because the Kelvin scale is an absolute scale. In the context of thermodynamics, 2 K is twice as "hot" as 1 K. And 3 K is three times as "hot". That is not true of the Celsius or Fahrenheit (or other temperature) scales.
What scale boils water at 373 degree's?
Firstly, temperatures measured in Kelvin (K) are not degrees but rather, just numbers. However, 373 K is the same as 100 degrees C. At that temperature, pure water begins to boil at sea level.
What does 225 K mean as a temperature reading?
The Kelvin scale uses the same degree size as Celsius, but starts 273.15 degrees lower, at absolute zero (in Celsius zero is the freezing point of water). So Kevin temperatures have a numerical value greater by 273.15. 225 K would therefore indicate a rather cold temperature of about -48.15° C (-54.67°F).
Is 135 degrees Kelvin hot or cold?
Extremely cold. It equates to minus 216.67 degrees Fahrenheit.
Why do scientists use the Kelvin and Celsius scale rather than the Fahrenheit scale?
Celsius is a very accurate measurement between the freezing and boiling points of water. 0 being freezing, and 100 boiling. Kelvin is the measurement of absolute zero, where particles stop moving altogether. Kelvin has the same conversion rating, only 0 Kelvin is -273 degrees Celsius. The Kelvin scale is an absolute scale. This means that 2 K is twice as hot as 1 K and so on. Neither the Celsius nor the Fahrenheit scales do that. The Centigrade (or Celsius scale are based on the freezing and boiling points of water (at normal pressure), the Fahrenheit scale was not: the 0 was the lowest temperature attained by ice and salt.
What is the formula for converting celsius to Kelvin?
Celsius and Kelvin scales use the same size unit or "degree." But Kelvin has its zero point at absolute zero rather than the freezing point of water. Absolute zero (zero K) is about -273.15° Celsius.To convert Celsius to Kelvin, add 273.15. For example 100° C is 373.15 kelvins.To convert kelvins to Celsius, subtract 273.15. For very large numbers, such as 5000 K, the value (4726.85° C) is not going to be that different.
What is the difference between kelvin and centigrade?
Both are measures of temperature. Both have 100 Degrees between the freezing point and melting point of pure water at 1 atmosphere of pressure but the difference lies in the value of 0k and 0c. Zero centigrade is the freezing temperature of pure water where as Zero Kelvin is Absolute Zero, which is -273 Degrees Centigrade. Therefore water freezes at 273 Degrees Kelvin and 0 Degrees Centigrade. Water therefore boils at 373 Degrees Kelvin but 100 degrees Centigrade. (All assuming one standard atmosphere of pressure.)
Which group of people most often use Kelvin scale?
Yes, the Kelvin scale is very widely used in the sciences because it provides an absolute temperature scale as opposed to the relative scales like Celsius and Fahrenheit. In the world of cryogenics, particularly that of the really low temperatures, those nearer absolute zero, we see the Kelvin scale used frequently. To cite a single example, it is easier to talk about the boiling point of helium being 4.22 K rather than −268.93 °C, or −452.07 °F.
What is the temperature scale preferred for gas calculations?
Kelvin is the temperature scaled preferred by scientists for doing pretty much everything rather than deciding to wear a coat or a bathing suit (though given the outside temperature in Kelvin it wouldn't take most of them long to make that determination either).
What is a temperature reading of 237 Kelvins equivalent to?
The Kelvin scale uses the same degree size as Celsius, but starts 273.15 degrees lower, at absolute zero (in Celsius zero is the freezing point of water). So Kevin temperatures have a numerical value greater by 273.15. 237 K would therefore indicate a rather cold temperature of about -36.15° C (-33.07°F).
