If today's temperature is 0 degrees and tomorrow is twice as hot as today - what is the temperature tomorrow?

Answer 1

- PROBLEMS -

You haven't specified what scale (Fahrenheit, Celsius, Rankine or Kelvin)

You can't multiply temperatures unless they are on a relative scale.

Whatever scale you used, if it's twice as hot tomorrow then we'll all be dead.


- POSSIBLE ANSWERS -

459.67 Fahrenheit
273.15 Celsius
0 Kelvin, 0 Rankine (-459.67 Fahrenheit / -273.15 Celsius)


- EXPLANATION -

You can't multiply temperatures in Fahrenheit or Celsius (Centigrade) because they aren't relative and 0 isn't the lowest you can get.

To multiply temperatures you need to use a measurement which starts at 0, in other words either Kelvin or Rankine. Both take the coldest possible temperature as being 0. This is 273.15 degrees Celsius below freezing and is called Absolute Zero, it's the temperature at which everything freezes.

Using the Kelvin scale temperatures can be multiplied and if today's temperature was 0 Kelvin then tomorrow's would also be 0 Kelvin (0 x 2 = 0) or -273.15 Celsius.

If it was 0 Celsius today we could convert that to Kelvin (273.15K) then multiply by 2 which would mean the temperature tomorrow would be 273.15 Celsius.

Converting 0 Fahrenheit to Kelvin, multiplying by 2 and converting back to Fahrenheit would give a temperature for tomorrow of 459.67 F.

Answer 2

0 degrees celcius, is infact a number on a scale.

It is a rather crude way of measuring temperature. The actual scientific way of measuring temperature is in another unit - Kelvins.

-273.15 degrees celcius is called absolute zero. (Bit of a bad number, I know.)

You physically cannot get any colder than this. The actual atoms that make up any material at this temperature, have no energy, and stop moving. You can't get any colder than this.

However, way before this, a man called Celcius invented a way of measuring temperature and set 0 degrees as the freezing point of water and 100 degrees as the boiling point of water.

I hope you can see, trying to overlay a rather simple scale like this on top of the actual Kelvin way of measuring temperature leads to confusing numbers. I'm sure someone will have done the calculations for you on here.

But you can double 0 degrees celcius (if you do it in kelvins) and it is actually very hot indeed!

Answer 3

If in Fahrenheit, then 460 F

In physics, calculations involving temperature will use "absolute temperature" where the 0 is the coldest that anything in the universe can get.
The name of the units are degrees Kelvin (symbol = K)

A temperature of 0 C corresponds to +273.16 K.

For example: In calculations involving pressure, volume and temperature for ideal gases, we use the equation:
PV/T = P'V'/T'
Where P, V and T are the initial pressure, volume and temperature. P', V' and T' are after a change.

If you "double the temperature" then you will either double the pressure or double the volume (or a combination that multiplies to 2).

So, if you have air in a completely closed room at 0 C and you double the temperature, then the new temperature will be 2*273.16 K = 546.32 K = +273.16 C (+523.69 F).

If you started at 0 F (255.38 K), then doubling the temperature will raise it to 2*255.38 K = 510.76 K = 237.6 C = 460 F.

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PS, we could have done the calculation directly using degrees "Rankine" see link

Answer 4

I would have to say that the temperature would be 0 degrees because if you triple 0 its just going to be 0.

ex. 0+0=0

Answer 5

0 degrees Celsius is 273 degrees Kelvin.
273 doubled is 546 degrees Kelvin which is 273 degrees Celsius.
The temperature tomorrow is 273 degrees Celsius [answer].
Not realistic on Earth but could well happen on Mercury.

Answer 6

Not this one again !!!! Zero is a relative number and only works on one thermometer at a time. If you take zero as Celsius and convert to Kelvin and doubled the temperature, you'd be dead tomorrow from the heat.

Answer 7

Approx 546 degrees Kelvin. Cloudy in the afternoon.

Answer 8

0? im no genius, but 0 times 2 is definitley 0

Answer 9

0 degrees!

Answer 10

0 deg officially but 2 degs above 0 is 2 deg so by right both answers are correct