If today is 0 degree celsius and tomorrow will be twice as cold as today.What's the temperature tomorrow?

Answer 1

Celsius (and Fahrenheit) can not be multiplied or divided, they are not relative scales, 0 is not the lowest point.

-273.15 is the lowest possible temperature, this is Absolute Zero. 0 Celsius means there's 273.15 degrees of heat (measured in Kelvin). If it's twice as cold tomorrow (or hot - makes no difference) then it will be 546.3 Kelvin which in Celsius is +273.15.

The link in the above answer explains it in more detail but there's a serious error in the calculations in that the temperature has been divided by two, not multiplied by two.

Answer 2

No damnit ... not fahrenheit.... and you calculated what it would be if it was twice as HOT, not cold, person above me!

If you want to speak on scientific terms, the temperature tomorrow will be -136.5 degrees celsius. This is because 0 degress C = 273.95 Kelvin. Divide that by 2 (for twice as cold) and you get 136.5 Kelvin, which is halfway between the freezing point of water and absolute zero.

Answer 3

As stated cold is not a physical quantity, cold is a human perception. Therefore cold is referenced against body temperature. So, body temperature being approx 37 degrees celcius, the body sees 0 degrees celcius as a difference of -37 degrees. Therefore to be twice as cold the temperature tomorrow would be -37 degrees celsius.

Answer 4

-273 / 2 = -136.5 degrees Celsius The Kelvin scale is a thermodynamic (absolute) temperature scale where absolute zero—the lowest possible temperature where nothing could be colder and no heat energy remains in a substance—is defined as zero kelvin (0 K). The unit increment of the Kelvin scale is the kelvin (symbol: K), which is the SI unit of temperature and is one of the seven SI base units.

Answer 5

Let the old professor jump in on this one. The opposite of cold is hot...these words allude to heat and are relative terms. Heat is NOT temperature, it is a measure of kinetic energy. Temperature is measured in degrees. Heat is measured in calories. So, scientifically, how do you pose the question correctly? You can't mix "apples and oranges" as the old saying goes. That's why the question is so perplexing and so many answers come up.

Also, since cold is a sensory thing, we would have to know the wind speed and humidity to calculate the "wind chill" factor.

Answer 6

nothing change still 0, since zero degree celcius is the freezing point!

Answer 7

Try converting to degrees farenheit, its be 32. Then double that, 62 farenheit, then convert back to celcius to 17.8 celcius.

Answer 8

abcdef is right, but the question said "twice as cold", so it is -17.8 Celsius.

Or so I think...

Answer 9

-136.575°C.