Jan 10, 2022 · If clothes do indeed sublime water at ca. 1 atm then that means there exists a vapor pressure of water (i.e., ice) below 0 °C at ca. 1 atm. In looking into this, the USGS states that, "It is not easy to actually see sublimation occurring, at least not with ice. One way to see the results of sublimation is to hang a wet shirt outside on a below ...

Jul 16, 2024 · Lets do a Hess's Law examination of sublimation of some ice at a temperature below the freezing point: First: Sublime the ice directly at T to vapor heat is supplied directly from the environment, think a gram of snow sitting on the ground. ICE + heat of sublimation gives water vapor. This happens at temperature T.

Jan 12, 2015 · For quantitative information see "Sublimation from a seasonal snowpack at a continental, mid-latitude alpine site" Hydrol. Process. 13, 1781-1797 (1999). Process. 13, 1781-1797 (1999). Share

Jan 24, 2023 · Water triple point is $\pu{+0.01 ^\circ C}$ at about $\pu{610 Pa} \ll \pu{100 kPa}$ and water does sublime at freezing temperature. But slowly. I assume $\pu{100 mmHg}$ is a practical threshold for sublimation to have a possibly sufficient rate. There is no need to fit atmospheric pressure.

Mar 24, 2021 · Sublimation is defined by the IUPAC as The direct transition of a solid to a vapour without passing through a liquid phase. A sublimation equilibrium can occur in two sets of conditions: at a temperature-pressure set given by the phase diagram of the pure substance. This is only possible if the pressure is lower than that of the triple point.

Sublimation is defined by the IUPAC as The direct transition of a solid to a vapour without passing through a liquid phase. A sublimation equilibrium can occur in two sets of conditions: at a ... physical-chemistry

Sep 17, 2015 · It's just about heat capacity + heat conductance, nothing more. $\ce{CO2}$ sublimates much quicker in the water because water is much better at heat exchange than air. Anybody who ever experienced swimming in water at 15°C and walking in air at 15°C can attest to that. Catalysts for heat exchange are usually made of copper and other metals.

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Sep 14, 2021 · As I got some a finger sized of dry ice in water, it started to bubble vigorously as expected and gave off a lot of smoke. But after 3 minutes or so, the rate of sublimation seems to slow down a lot, and in only bubbles from one spot of the ice, and the rest of the dry ice seems to be not sublimating anymore. I dropped the dry ice into tap water.

Sep 16, 2015 · Sublimation of iodine at atmospheric pressure is not a bulk effect (which would be captured by the phase diagram) but a surface effect due to equilibrium vapor pressure. "Sublimation" is an overloaded term with two distinct meanings corresponding to evaporation and boiling in liquids, and what we generally talk about as sublimation of iodine is ...