Why is -143 degrees colder than -245 degrees?

Question

for a science work sheet plz help

Answer 1

If there is no mistake in your question's text saying that " -143 is colder than - 245°" (whatever the scale) then the statement is not correct.

-245° is located far below from zero than -143°. You can see it in the following diagram:

-245.........-143.........0.........10.... 20...1000.....

So -243° is colder than -143° not the opposite.

Good luck!

Answer 2

I think that someone has MADE A MISTAKE in setting up this question! Either that, or you yourself may have mistyped or misinterpreted some other information to arrive at the question in this form. (Please let us all know, in that case!)

On the face of it, -143 degrees is HOTTER (not colder) than -245 degrees, provided that both temperatures are expressed on the same scale.

So, presumably the "oddity" in the question is trying to exploit the difference between the Fahrenheit (F) and Celsius (C) scales for temperature.

-143 deg F is CLEARLY much hotter than -245 C (the latter is only ~ 28 C hotter than "absolute zero K" at ~ - 273 C). So that possibility is easily dismissed.

What if it's -143 C? The connection is:

F = (9/5) C + 32.

O.K., then C = -143 ===> F = (9/5) (-143) + 32 = -225.4

So - 143 C is still HOTTER than - 245 F.

So what happened in setting the question? : one possibility is that the setter FORGOT about the +32 in the F, C connection. WITHOUT that +32 (call the result F', a "pseudo-Fahrenheit" scale), one would get:

F' = - 257.4;

so that the "pseudo-Fahrenheit" equivalent of -143 C WOULD then appear to be colder than -245 degrees F. But it would all be because of using an unusual (some would say incorrect) scale in which water freezes at 0 deg. F'.

That seems quite an unreasonable thing to pose.

The only alternative would appear to be the following : perhaps you've been introduced to some other historical temperature scale in which a Fahrenheit-like scale had a different value than 32 deg. for the temperature of freezing water, or maybe some other quite different scale altogether. I have a vague recollection that there may have been something like this in my own education at one stage, but more than 50 years later, I can't recall its details any more.

In any case, the question ought then to have said, not "Why is ... ," but rather "Explain how it could be possible that ... ."

Frankly, that would be "dirty pool."

Live long and prosper.

P.S. AHA, I FOUND IT (so recall IS possible after > 50 years!): it's the Romer or Roemer scale (neither really right as the vowel sound is really the Danish symbol with a "slash through the o.") Water boils at 60 deg. R, and 1 degree R is 40/21 (ugh!) of a degree C. I'm sure that you can now find SOME interpretation such that the question's statement will be true (with three measurement systems to play with), but what a DIRTY TRAP to set for students! Find more information with a Yahoo search or checking Wikipedia. Good luck!

Answer 3

-245 would be colder than -143. I don't know why it says that. Just like -10 is colder than -5, not vice versa.

Normally when you think of the higher number you think warmer, but in the case of negative temperatures, they are traveling in the other direction. Just say you had a number line with 0 in the middle. If you travel right, the numbers get higher and the temperature gets higher. If you travel left, the numbers get higher negatively, but the temperature gets colder. It's because it's that many degrees colder than, just say, 0. So something 143 degrees colder than zero isn't as cold as something that is 245 degrees colder than zero.

Answer 4

If both are in celsius:
it is n't...3..2..1..0..-1..-2..-3....and so on 'till -143...-245
-245 is much colder than -143.....102C to be precise.

I think you read(or wrote) the question wrongly.
Even if -245 F is changed to C it is still colder....-154C.

Answer 5

-143 is not colder than -245.maybe the cause of this mistake is the base of the degrees. there are 3 kind of degree that we are using.
1)'C
2)'K
3)'F
which 'K='C-273
So if -245 that you were asking was in 'k So it is 28'C
So in This way -143'C is colder than 28'C.

and the thing that one of the other answerer said was wrong because : -245-(-143)=-102. So -143 is Not colder that -245 in one base od degree.

Answer 6

-143 dagrees not colder than -245 degrees.

although both are cold from our viewpoint but MORE colder is lesser value of them so -245egrees are more colder.

and It is more colder because temperature is degree of hotness. we conventionally defined temperature scale such that the 'colder' bodies have lesser values then the hotter ones.this tells us that how much one body is hotter relative to the another.

If someone stoked a different thought and Celsius and ferhanite scale was defined in opposite way ( means they defined it as "degree of coldness " ) then Ur statement would be right !

Answer 7

-245°C is colder than -143°C.
Bear in mind that you can't have anything colder than -273°C, which is absolute zero. Which makes some of the answers above absolute tosh.

Answer 8

On the same scale (C or F), -143 degrees is WARMER than -245 degrees.

Answer 9

You must be confusing the different scales of measuring temperature. Kelvin starts at absolute 0, which is -273.15 Celcius. Fahrenheit takes the temperature of freezing sea water as being zero, which happens to be -32 Celsius and it takes water to boil at 100 celcius or, 212 Fahrenheit and 373.15 Kelvin. Fahrenheit does not have the same gradient either, so 0 Celcius is 32 Fahrenheit and the gradient is 9/5.

Answer 10

It is not.

It is not.143degrees centigrade and 245 degrees fahrenheit are different,~143degrees centigrade is colder than ~245 degrees fahrenheit which equates to ~118 degrees centigrade.You can convert using the equation 5F~160=9C.It is more relevant to express temperature in degrees Absolute.0 degrees centigrade is 273 degrees A. ~3C=270A. ~273C=OA [nought degrees absolute] All molecular motion stops at nought degrees Absolute.