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Topic: Absolute Zero  (Read 4703 times)

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Offline osmillieo

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Absolute Zero
« on: September 23, 2007, 03:16:35 PM »
Calculate absolute zero on the Fahrenheit scale to the greatest number of significant figures allowed.


My answer was –459.67 °F but i was told that this is incorrect! What's the real answer, anyone?
Isn't absolute zero (0 Kelvin) ?
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Offline Borek

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Re: Absolute Zero
« Reply #1 on: September 23, 2007, 03:31:51 PM »
What is conversion formula?
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Offline osmillieo

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Re: Absolute Zero
« Reply #2 on: September 23, 2007, 04:10:15 PM »
Absolute Zero= 0 Kelvin

Deg F = (deg K - 273.15) * 9/5 + 32 = –459.67 °F
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Offline Borek

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Re: Absolute Zero
« Reply #3 on: September 23, 2007, 04:30:52 PM »
Seems OK to me - unless you are expected to add infinite number of zeros, as -459.67 is an exact value

I am not sure though, second opinion won't hurt.
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Offline nlee5687

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Re: Absolute Zero
« Reply #4 on: September 23, 2007, 06:21:29 PM »
What do you mean by infinite numbers of zeros? What would it look like?

Do you think the significant figures are right?
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Offline nlee5687

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Re: Absolute Zero
« Reply #5 on: September 23, 2007, 06:23:53 PM »
^^ forgot to post my answer.. -460 degrees F. Wouldn't it be 3 sig figs according the the equation.
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