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Is it possible to find dry ice crystals lying around the base in Antarctica?
The Next CEO of Stack OverflowPhysicality of claims regarding AC ice energy storage unitsDry Ice in Liquid StatesDoes a cooler, submerged in water, keep beer colder, longer?How can we describe or model the spread of ice during the freezing of the surface of a still lake?Is air in the refrigerator dry? how much?Frozen lake ice formationEnergy efficiency: better to heat hot tub constantly or twice a day for a longer period?What can I do to be invisible for the IR-camera on board of a police helicopter?Am I right about IR vision?Is physical entropy opposite to information entropy?
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Dry ice sublimates at -78.5°C, while the lowest temperature registered is about -89.2°C around the Vostok station in Antarctica. Imagine a person living on that station on that day (or night, since it was measured during the polar night).
If that person goes outside, would they find any dry ice crystals laying on the ground?
thermodynamics phase-transition weather
asked Mar 18 at 15:43
alexeykuzmin0alexeykuzmin0
1184
$endgroup$
add a comment |
$begingroup$
Dry ice sublimates at -78.5°C, while the lowest temperature registered is about -89.2°C around the Vostok station in Antarctica. Imagine a person living on that station on that day (or night, since it was measured during the polar night).
If that person goes outside, would they find any dry ice crystals laying on the ground?
thermodynamics phase-transition weather
asked Mar 18 at 15:43
alexeykuzmin0alexeykuzmin0
1184
$endgroup$
add a comment |
$begingroup$
Dry ice sublimates at -78.5°C, while the lowest temperature registered is about -89.2°C around the Vostok station in Antarctica. Imagine a person living on that station on that day (or night, since it was measured during the polar night).
If that person goes outside, would they find any dry ice crystals laying on the ground?
thermodynamics phase-transition weather
asked Mar 18 at 15:43
alexeykuzmin0alexeykuzmin0
1184
$endgroup$
Dry ice sublimates at -78.5°C, while the lowest temperature registered is about -89.2°C around the Vostok station in Antarctica. Imagine a person living on that station on that day (or night, since it was measured during the polar night).
If that person goes outside, would they find any dry ice crystals laying on the ground?
thermodynamics phase-transition weather
thermodynamics phase-transition weather
asked Mar 18 at 15:43
alexeykuzmin0alexeykuzmin0
1184
asked Mar 18 at 15:43
alexeykuzmin0alexeykuzmin0
1184
asked Mar 18 at 15:43
alexeykuzmin0alexeykuzmin0
1184
asked Mar 18 at 15:43
alexeykuzmin0alexeykuzmin0
1184
asked Mar 18 at 15:43
alexeykuzmin0alexeykuzmin0
1184
1184
add a comment |
add a comment |
1 Answer
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The equilibrium vapor pressure of carbon dioxide at -80 C is about 1 bar. The partial pressure of carbon dioxide in air is about 0.0004 atm. This tells you that CO2 will not sublime from air at -80 C.
answered Mar 18 at 16:02
Chet MillerChet Miller
15.9k2826
$endgroup$
$begingroup$
That's why I always make sure to bring a sealed box of carbon dioxide when I vacation in Antarctica.
$endgroup$
– JMac
Mar 18 at 17:48
1
$begingroup$
While this answer is completely correct, I feel obliged to point out that drawing comparisons between two values in different units (atm vs. bar) is Not A Best Practice, particularly when they're not related by a standard SI prefix.
$endgroup$
– Michael Seifert
Mar 18 at 17:58
$begingroup$
Oops. I meant for the first to be atm.
$endgroup$
– Chet Miller
Mar 18 at 18:01
$begingroup$
So if I was brewing beer (what else is there to do at Vostok?), and thus had a container of carbon dioxide, which naturally happens during brewing, that container could have developed CO2 crystals, while it slowly deflated.
$endgroup$
– Cort Ammon
Mar 18 at 22:00
$begingroup$
Yes, if the pressure of pure CO2 in the container is higher than the equilibrium vapor pressure of CO2 at the temperature of the CO2.
$endgroup$
– Chet Miller
Mar 18 at 22:28
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
$begingroup$
The equilibrium vapor pressure of carbon dioxide at -80 C is about 1 bar. The partial pressure of carbon dioxide in air is about 0.0004 atm. This tells you that CO2 will not sublime from air at -80 C.
answered Mar 18 at 16:02
Chet MillerChet Miller
15.9k2826
$endgroup$
$begingroup$
That's why I always make sure to bring a sealed box of carbon dioxide when I vacation in Antarctica.
$endgroup$
– JMac
Mar 18 at 17:48
1
$begingroup$
While this answer is completely correct, I feel obliged to point out that drawing comparisons between two values in different units (atm vs. bar) is Not A Best Practice, particularly when they're not related by a standard SI prefix.
$endgroup$
– Michael Seifert
Mar 18 at 17:58
$begingroup$
Oops. I meant for the first to be atm.
$endgroup$
– Chet Miller
Mar 18 at 18:01
$begingroup$
So if I was brewing beer (what else is there to do at Vostok?), and thus had a container of carbon dioxide, which naturally happens during brewing, that container could have developed CO2 crystals, while it slowly deflated.
$endgroup$
– Cort Ammon
Mar 18 at 22:00
$begingroup$
Yes, if the pressure of pure CO2 in the container is higher than the equilibrium vapor pressure of CO2 at the temperature of the CO2.
$endgroup$
– Chet Miller
Mar 18 at 22:28
add a comment |
$begingroup$
The equilibrium vapor pressure of carbon dioxide at -80 C is about 1 bar. The partial pressure of carbon dioxide in air is about 0.0004 atm. This tells you that CO2 will not sublime from air at -80 C.
answered Mar 18 at 16:02
Chet MillerChet Miller
15.9k2826
$endgroup$
$begingroup$
That's why I always make sure to bring a sealed box of carbon dioxide when I vacation in Antarctica.
$endgroup$
– JMac
Mar 18 at 17:48
1
$begingroup$
While this answer is completely correct, I feel obliged to point out that drawing comparisons between two values in different units (atm vs. bar) is Not A Best Practice, particularly when they're not related by a standard SI prefix.
$endgroup$
– Michael Seifert
Mar 18 at 17:58
$begingroup$
Oops. I meant for the first to be atm.
$endgroup$
– Chet Miller
Mar 18 at 18:01
$begingroup$
So if I was brewing beer (what else is there to do at Vostok?), and thus had a container of carbon dioxide, which naturally happens during brewing, that container could have developed CO2 crystals, while it slowly deflated.
$endgroup$
– Cort Ammon
Mar 18 at 22:00
$begingroup$
Yes, if the pressure of pure CO2 in the container is higher than the equilibrium vapor pressure of CO2 at the temperature of the CO2.
$endgroup$
– Chet Miller
Mar 18 at 22:28
add a comment |
$begingroup$
The equilibrium vapor pressure of carbon dioxide at -80 C is about 1 bar. The partial pressure of carbon dioxide in air is about 0.0004 atm. This tells you that CO2 will not sublime from air at -80 C.
answered Mar 18 at 16:02
Chet MillerChet Miller
15.9k2826
$endgroup$
The equilibrium vapor pressure of carbon dioxide at -80 C is about 1 bar. The partial pressure of carbon dioxide in air is about 0.0004 atm. This tells you that CO2 will not sublime from air at -80 C.
answered Mar 18 at 16:02
Chet MillerChet Miller
15.9k2826
edited Mar 18 at 17:15
answered Mar 18 at 16:02
Chet MillerChet Miller
15.9k2826
answered Mar 18 at 16:02
Chet MillerChet Miller
15.9k2826
answered Mar 18 at 16:02
Chet MillerChet Miller
15.9k2826
15.9k2826
$begingroup$
That's why I always make sure to bring a sealed box of carbon dioxide when I vacation in Antarctica.
$endgroup$
– JMac
Mar 18 at 17:48
1
$begingroup$
While this answer is completely correct, I feel obliged to point out that drawing comparisons between two values in different units (atm vs. bar) is Not A Best Practice, particularly when they're not related by a standard SI prefix.
$endgroup$
– Michael Seifert
Mar 18 at 17:58
$begingroup$
Oops. I meant for the first to be atm.
$endgroup$
– Chet Miller
Mar 18 at 18:01
$begingroup$
So if I was brewing beer (what else is there to do at Vostok?), and thus had a container of carbon dioxide, which naturally happens during brewing, that container could have developed CO2 crystals, while it slowly deflated.
$endgroup$
– Cort Ammon
Mar 18 at 22:00
$begingroup$
Yes, if the pressure of pure CO2 in the container is higher than the equilibrium vapor pressure of CO2 at the temperature of the CO2.
$endgroup$
– Chet Miller
Mar 18 at 22:28
add a comment |
$begingroup$
That's why I always make sure to bring a sealed box of carbon dioxide when I vacation in Antarctica.
$endgroup$
– JMac
Mar 18 at 17:48
1
$begingroup$
While this answer is completely correct, I feel obliged to point out that drawing comparisons between two values in different units (atm vs. bar) is Not A Best Practice, particularly when they're not related by a standard SI prefix.
$endgroup$
– Michael Seifert
Mar 18 at 17:58
$begingroup$
Oops. I meant for the first to be atm.
$endgroup$
– Chet Miller
Mar 18 at 18:01
$begingroup$
So if I was brewing beer (what else is there to do at Vostok?), and thus had a container of carbon dioxide, which naturally happens during brewing, that container could have developed CO2 crystals, while it slowly deflated.
$endgroup$
– Cort Ammon
Mar 18 at 22:00
$begingroup$
Yes, if the pressure of pure CO2 in the container is higher than the equilibrium vapor pressure of CO2 at the temperature of the CO2.
$endgroup$
– Chet Miller
Mar 18 at 22:28
$begingroup$
That's why I always make sure to bring a sealed box of carbon dioxide when I vacation in Antarctica.
$endgroup$
– JMac
Mar 18 at 17:48
$begingroup$
That's why I always make sure to bring a sealed box of carbon dioxide when I vacation in Antarctica.
$endgroup$
– JMac
Mar 18 at 17:48
1
1
$begingroup$
While this answer is completely correct, I feel obliged to point out that drawing comparisons between two values in different units (atm vs. bar) is Not A Best Practice, particularly when they're not related by a standard SI prefix.
$endgroup$
– Michael Seifert
Mar 18 at 17:58
$begingroup$
While this answer is completely correct, I feel obliged to point out that drawing comparisons between two values in different units (atm vs. bar) is Not A Best Practice, particularly when they're not related by a standard SI prefix.
$endgroup$
– Michael Seifert
Mar 18 at 17:58
$begingroup$
Oops. I meant for the first to be atm.
$endgroup$
– Chet Miller
Mar 18 at 18:01
$begingroup$
Oops. I meant for the first to be atm.
$endgroup$
– Chet Miller
Mar 18 at 18:01
$begingroup$
So if I was brewing beer (what else is there to do at Vostok?), and thus had a container of carbon dioxide, which naturally happens during brewing, that container could have developed CO2 crystals, while it slowly deflated.
$endgroup$
– Cort Ammon
Mar 18 at 22:00
$begingroup$
So if I was brewing beer (what else is there to do at Vostok?), and thus had a container of carbon dioxide, which naturally happens during brewing, that container could have developed CO2 crystals, while it slowly deflated.
$endgroup$
– Cort Ammon
Mar 18 at 22:00
$begingroup$
Yes, if the pressure of pure CO2 in the container is higher than the equilibrium vapor pressure of CO2 at the temperature of the CO2.
$endgroup$
– Chet Miller
Mar 18 at 22:28
$begingroup$
Yes, if the pressure of pure CO2 in the container is higher than the equilibrium vapor pressure of CO2 at the temperature of the CO2.
$endgroup$
– Chet Miller
Mar 18 at 22:28
add a comment |
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