If its zero degrees tonight, and tomorrow its going to be twice as cold, how cold will it be?

Question

Seriously though ....

Answer 1

It all depends on what you think cold is.

Answer 2

It depends what you mean by 'cold'. If you are considering the pressure and relative humidity, you can get that answer from a Psychometric chart. Look up the dry bulb temp, and the humidity, then follow the lines to enthalpy, which is read in BTUs per pound of dry air.
Otherwise you could use energy of the air with the specific heat of air at 0 degrees, and divide that by 2, then reconvert to Fahrenheit scale.
For absolute temperatures, you would have to convert to the Rankine scale. On the Rankine scale, absolute zero is at -459.67F. Because the Rankine degree is the same size as the Fahrenheit degree, the freezing point of water (32°F;) and the boiling point of water (212°F;) correspond to 491.67°Ra; and 671.67°Ra; respectively. So, 0°F is 459.67°Ra. Half of that is 229.835°Ra. Which is -229.835°F.

Answer 3

Hmmm, I would change to a different unit (C, F, K) and then figure it out. Also, what does twice as cold mean? I think this wording would only apply on the negative scale. What temperature is twice as cold as 40? Shouldnt you say half as warm?
But assuming you are talking about F then I would change it to K becuase if you reach 0 K then there is no such temperature colder. So 0° F is 255.222 K, assuming you mean half as warm as 0 then 1/2*255.222 = 127.61. Convert this back to F to get -229.702.

Answer 4

If it's 0 degrees Fahrenheit tonight then tomorrow it will be 491.67 Fahrenheit.

If it's 0 degrees Celsius (Centigrade) tonight then tomorrow it will be 273.15 degrees Ceslius.

If it's 0 Kelvin tonight then it will be 0 Kelvin tomorrow.

In all three cases we wouldn't be around to see it.

Kelvin is the only relative temperature scale (it starts at 0), the only way you can multiply temperatures is by using the Kelvin scale. 0 Fahrenheit is 491.67 Kelvin and 0 Celsius is 273.15 Kelvin. 0 Kelvin is the coldest possible temperature, also known as absolute zero. It can never be measured because whatever instrument you use to measure it would freeze.

Answer 5

it really is lovable. 0 Fahrenheit, Celsius, or Kelvin? Now there is the position your question breaks down. If at present is 28 degrees Celsius and this nighttime is 0 Celsius which will be in Kelvin: [ok] = [°C] + 273.15 (Wikipedia) That then would advise a 28 degree distinction between at present's temperature. tomorrow is two times as chilly which brings us to 273.15 - 28 and equals 245.15 Kelvin. Or -28 degrees Celsius. try lower back for a diverse celebration in case you pick for instance our heads with your good judgment.

Answer 6

It's always ambiguous to refer to multiples of a "negative property" that only reflects the absence of an actual property. I avoid ever describing things as "twice as short" or "three times as thin." Rather, say "half the length" or "one third as thick." In this case, you could say "half as warm." This requires an absolute temperature scale, which is used commonly in science but rarely in meteorology. 0 degrees Celcius is 273.15 Kelvins (an absolute temperature scale with units equal to Celcius degrees), and half that is 136.58 Kelvins, a chilling -136.57 Celcius, which is nearly 50 degress Celcius colder than the world's record low temperature. You could also redefine "twice as cold" to mean "twice as far below an arbitrary standard," giving the result directly above mine. This is a good way to deal with a specific instance, but requires that information about the arbitrary standard is also communicated.

Answer 7

Hey, you have to give a point of reference, or what temperature scale you are using.

In Fahrenheit, if it were twice as cold, it would be -32 degrees out, as the freezing point of water is the absolute reference.

Answer 8

Who says?

Could be anything. 0 F? 0 C?

If its 0 C, and normal comfort is 20 C, then the prediction is for -20 C.

Answer 9

-1

Answer 10

zero