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Element 99

What temperature is twice as hot as 20C? (careful)

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Posted - March 6, 2017
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Responses


  • 17260
    By Celsius, or by another scale? This post was edited by Benedict Arnold at March 6, 2017 8:39 PM MST
      March 6, 2017 1:39 PM MST
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  • OK, I'll be the bunny. In spite of your warning I can't see it being anything other than 40°C.
      March 6, 2017 1:41 PM MST
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  • 496
    22C? 
      March 6, 2017 1:52 PM MST
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  • Okay Element 99  I have been watching relativity and quantum stuff on YouTube, so if you are going all relative on us then you are sending us through Kelvin, which starts at absolute zero, no heat because all motion has stopped.

    So: 20*C = 293.15*K
    293.15*K x 2 = 586.3*K
    586.3*K = 313.15*C
      March 6, 2017 2:36 PM MST
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  • Ummm.i don't think you can do that ...
      March 6, 2017 2:42 PM MST
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  • 5451
    I remember this question from a physics test in high school.  Your way of doing it is correct.
      March 6, 2017 3:39 PM MST
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  • But common sense will show that it can't be the right answer ... 20c is room temperature, 313c is three times higher than boiling water so it can't be right
      March 6, 2017 3:50 PM MST
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  • 5451
    *puts on nerd glasses*

    I'm pretty sure Virginia and I are right on this one.

    You have to use SI units to get the right answer.  Kelvin is the SI measurement of heat but Celsius isn't.

    If there's no heat at all the amount of heat is 0K.  If there is no heat at all the temperature is -273.15°C.

    If the temperature is 20°C the amount of heat is 293.15K

    Twice the amount of heat of 293.15K is 586.3K which equals 313.15°C

    Sorry, but you'll need to see me after class.




      March 6, 2017 10:41 PM MST
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  • 17260
    Ugh. All these numbers. All I asked for was by which scale we are supposed to give our reply. Oomph.
      March 6, 2017 10:44 PM MST
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  • 5451
    I'll need to see you after class also.




      March 6, 2017 10:48 PM MST
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  • 17260
    Oops. Yes Miss. Not the cane again, please please please. This post was edited by Benedict Arnold at March 7, 2017 12:18 AM MST
      March 6, 2017 10:50 PM MST
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  • 5451
    No, you obviously weren't paying attention!  The lesson is all about temperature and heat!





      March 6, 2017 11:07 PM MST
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  • 17260
    Ouch. Yes Miss, the wheel. *biting in my lips*
      March 6, 2017 11:53 PM MST
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  • 44649
    Nice.
      March 7, 2017 7:09 AM MST
    1

  • 44649
    Brilliant.
      March 7, 2017 7:14 AM MST
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  • 20C is 68 F... Doubled is 136 F ... Which Strangely is 57C ... This deserves more thought!
      March 6, 2017 2:39 PM MST
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  • 5451
    I get 313.15°C. 
      March 6, 2017 3:41 PM MST
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  • 44649
    Brilliant.
      March 7, 2017 7:12 AM MST
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  • 508
    Im gonna say Cookies. cuz cookies is the answer.
      March 6, 2017 8:40 PM MST
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  • Skunky!!!
    This much we can say for certain, that what you have given is a BRILLIANT answer...
      March 6, 2017 9:13 PM MST
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  • 508
    Thanks very much Virginia :0) im glad that we can all agree with it hehehe. 
      March 7, 2017 12:18 AM MST
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  • 44649
    And I thought Jesus was the answer.
      March 7, 2017 7:11 AM MST
    2