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I've got a question regarding temperature. Here goes, on the Kelvin scale, I understand that at 273.15K, it is equivalent to 0.00 degrees celsius. What is the purpose then for the choice of 273.16K at the triple point of water? My text states that this number is deliberate so as to keep the interval between ice point and steam point a total of 100. I couldn't really understand that. Isn't the triple point of water the same as 0 degrees celsius, at 273.15K and 373.15K for steam point which is 100 degrees celsius?

Where is the point coming from?

thanks guys

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# Why 273.15 and 273.16

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