Lily S.

asked • 03/08/21

How do I calculate the inverse of the absolute temp and convert to (mK)-1?

Temperature: 296.05K, 297.05K, 298.05K



How do I find absolute temp? I converted from celsius to get my temp in kelvin, so is that absolute? And the inverse would just be 1/T, right? But how do I convert to (mk)-1? is that mol per kelvin?

Or is mK milli kelvin?


If so, would it just be


297050millikelvin= 297050mK-1=3.366x10-6mK?

1 Expert Answer

By:

Lily S.

It's for my lab report on vapor pressure of ethanol. I got that vapor pressure (1 of 20) is 44.5 mmHg with T=294.05. It tells me to calculate the inverse absolute temp and convert to (mK)^-1, then it says to prepare 3 graphs and that "note milli Kelvin" hence why I thought it meant milli Kelvin.
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03/08/21

J.R. S.

tutor
Ok. Well, I guess I learned something today. So mK = milliKelvin = 10^-3K. What they are asking you to do is to calculate the inverse of the absolute temperature and then convert to milli K. So you would have 1/294.05 = 0.003400K^-1 = 3.400 (mK)^-1. Must admit that I've not seen that before.
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03/08/21

Lily S.

Sorry, he wrote convert to mk^-1 equivalent to m(K)^-1. Would it still be 3.4mK^-1 ? I'm assuming so. Thanks for all the help! I had never heard of millikelvin either.
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03/08/21

J.R. S.

tutor
Yes, 3.4mK^-1 would be the preferred reference. Just as in ml^-1 or mm^-1, etc.
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03/08/21

Lily S.

I'm sorry, one last thing I'm still a bit confused about. Since it says milliK, would 294.05K first, as you said, be 1/294.05K=0.003400K^-1. That converted to millikelvin is 0.00000340078? Do I just write 3.4x10^-6mK^-1?
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03/08/21

J.R. S.

tutor
I'm sorry. I was in a hurry because I had to run somewhere, and I inadvertently multiplies by 1000 instead of dividing by 1000. So yes, you are correct that 1/294.05K = 0.003400K^-1 = 3.400x10^-6 K^-1
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03/08/21

Lily S.

Thank you so much!!!
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03/08/21

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