How hot is 726 k in degrees F?

Answer 1

Well we know that ºK and ºF are two different scales of temperature, and I know how to convert ºK to ºC and then ºC to ºF. Degrees Kelvin have the same size as Degrees Centigrade ( there are 100ºK and also 100ºC between the freezing point and the boiling point of water) its just that the scale of º Kelvin starts much further down where it is so cold you can't get any colder. In fact there is no such thing as a minus temperature in º Kelvin because 0ºK is the lowest you can go. It is Absolute Zero (Even in the Universe!) It is so cold that on the º Kelvin scale, the freezing point of water is 273.15 ºK, and 20ºC is 293.15ºK and the boiling point of water is 373.15 ºK So to convert º Kelvin to º Centigrade subtract 273.15, easy as that. If we dont need real accuracy we can say 273. We use Absolute Zero scales because that is where all processes of change of state of materials (of Temperature, Volume and Pressure) start from, so it is easier than having to start half way up a scale and then having to compensate for the different starting points all through the solution. It is easier to work out the absolute temperature first, then the problem then the final temperature in ºC or ºF if necessary at the end. The same goes for Absolute Pressure - and pressure changes due to Temperature change or Volume change follow a fairly simple mathematical rule but only according to absolute temperature or absolute pressure. Now we need to convert ºCentigrade to ºFahrenheit. There are 212 degrees of Fahrenheit between the Freezing point of a saturated Brine solution (very salty water) and the boiling point of ordinary water, both at normal atmospheric pressure. (boiling point temperature does go up with an increase in pressure and down with a decrease in atmospheric pressure i.e. down on a mountain or in a plane, the same effect with Centigrade degrees). On the same scale the freezing point of ordinary water is 32º Fahrenheit. So there is 212ºF-32ºF =180ºF between the Freezing point and the Boiling point of ordinary water. Referring back to our Centigrade Scale there is 100ºC between the same points. So the ratio between Fahrenheit and Centigrade degrees is 180/100, or 9/5. Similarly the ratio between Centigrade and Fahrenheit is 100/180, or 5/9. This is the actual ratio between the degrees. However the freezing point of water is 32 º in the Fahrenheit scale - so we have to take account of that in our conversion formula to bring our Fahrenheit scale back to the same starting point of 0º relative to the Centigrade scale, by subtracting 32 from our initial Fahrenheit temperature - or adding 32 to our converted Centigrade temperature to Fahrenheit to compensate for the starting temperature difference of 32 in the Fahrenheit scale. So ºC = 5/9(ºF-32), and the reverse ºF = ºC*9/5+32. These are the conversion formulae. So Answer is 726ºK-273 =453ºC = (9/5*453)+32=847.4ºF