If it is zero degrees today and it will be twice as cold tomorrow. What will the temperature be ?

Answer 1

As there are no actual units of cold, I can only assume you are asking what would be the temperature tomorrow if it was only half as warm as today, at zero degrees.
Presuming that you are using the Celcius scale, the temperature tomorrow would be 136.5 Kelvin... or minus 136.5 degrees Celcius.

Answer 2

There's a problem in answering your question in that you can't multiply temperatures in the same way you can with other numbers and that's because the two most commonly used measurements (Fahrenheit and Celsius / Centigrade) aren't relative.

If your question was - today I cycled 10mph and tomorrow I'm going to cycle twice as fast, how fast will I go tomorrow? That would make sense because speed is relative. On the scale of speed 0 is the slowest but with temperature 0 isn't the coldest.

Unless... you're talking about the Kelvin or Rankine scales which 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).

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.

Let's hope that tomorrow isn't twice as cold (or hot) as today.

Answer 3

Trevor had what I think is the best answer to this question (so far), when relating to Kelvin, which is really the only way to answer (or ask) the question. But let me try to add to it.

There is no such thing as cold. Cold is merely the absence of energy, like heat energy.

So, an easier question to ask would have been "What will the temperature be if it is twice as hot," which would be a simple doubling of the level of energy, or heat.

Now, rather than ask "What will the temp be if it is twice as cold?", we could thus pose it as "what if it was 1/2 as hot?"

Let's go back to Trever's Kelvin analysis, and thus HALF the energy, instead of doubling it. Then, we have:

0 degrees Celsius = 273.15 Kelvin
Twice as cold (1/2 as hot) = 136.575 Kelvin
Also, twice as cold (1/2 as hot) = minus 136.575 Celsius


Brian Y.

Answer 4

Interesting question Well, to be truthful I must tell you that there is no correct answer for this question. For example if it were 70F what would twice as cold mean? Or -10F what would twice as cold mean. Sorry, but this is indeed the answer to your question.

Answer 5

4 times as cold as a day ago

Answer 6

Depends whats room temp.? Let me know and I'll edit my post.

Answer 7

your an idiot. Stop dickin around on the internet

Answer 8

0?????????????

Answer 9

It would be 0 degrees! duh 0+0= 0!!!!!