Concept

Enthalpy of sublimation

In thermodynamics, the enthalpy of sublimation, or heat of sublimation, is the heat required to sublimate (change from solid to gas) one mole of a substance at a given combination of temperature and pressure, usually standard temperature and pressure (STP). It is equal to the cohesive energy of the solid. For elemental metals, it is also equal to the standard enthalpy of formation of the gaseous metal atoms. The heat of sublimation is usually expressed in kJ/mol, although the less customary kJ/kg is also encountered.

Official source

https://en.wikipedia.org/wiki/Enthalpy_of_sublimation

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Related courses (1)

ENV-525: Physics and hydrology of snow

This course covers principles of snow physics, snow hydrology, snow-atmosphere interaction, and snow modeling. It transmits detailed understanding of physical processes within the snow and at its interfaces with the atmosphere and the ground, and presents ...

Related lectures (16)

Chemical Equilibria and Reactivity

Explores chemical equilibria, enthalpies, and reactions through examples and calculations.

Snow Processes: Canopy Interactions

Explores snow accumulation and melt in forests, emphasizing snow-vegetation interactions and their modeling.

Phase Transitions: Real Gases

Explores phase transitions, phase diagrams, and the behavior of water.

Related publications (6)

Magnitude and controls of snow sublimation at a high-elevation Swiss alpine site

Snow sublimation remains poorly quantified globally, with published estimates spanning orders of magnitude (≈0.01mm/day to >6mm/day), corresponding to ~ 5-90% of winter snowfall. This large uncertainty limits our ability to accurately quantify water availability to downstream ecosystems, as vapor losses through sublimation reduce meltwater availability. Here, we quantify surface snow sublimation over one full winter season (November 2024 to June 2025) at a high-elevation alpine site (Weissfluhjoch Versuchsf

2026

Magnitude and controls of snow sublimation at a high-elevation Swiss Alpine site

Surface snow sublimation remains poorly quantified in the European Alps, with previous modeling studies estimating a broad range of winter surface sublimation losses (10 to 180 mm w.e.). This creates large uncertainties in the partitioning of snow ablation between sublimation and snowmelt, with significant implications for downstream water availability, as surface mass losses through sublimation directly reduce spring meltwater availability. Field observations used to quantify surface snow sublimation throu

Copernicus GmbH2026

Xenon Dynamic Nuclear Polarization: from Spin Dynamics to In-Vivo Applications

Hyperpolarization in Magnetic Resonance Imaging addresses the inherently low sensitivity of the imaging modality. The range of hyperpolarization techniques has drastically improved in the last 25 years, exploring a range of functionality including metabolic, perfusion and ventilation substrates. Two central hyperpolarization techniques are Spin Exchange Optical Pumping (SEOP) and Dynamic Nuclear Polarization (DNP), whereas the first is applied while the substrate is in a gaseous state, the latter hyperpolar

EPFL2026

Related people (1)

Berend Smit

Berend Smit received an MSc in Chemical Engineering in 1987 and an MSc in Physics both from the Technical University in Delft (the Netherlands). He received in 1990 cum laude PhD in Chemistry from Utrecht University (the Netherlands). He was a (senior) Research Physicists at Shell Research from 1988-1997, Professor of Computational Chemistry at the University of Amsterdam (the Netherlands) 1997-2007. In 2004 Berend Smit was elected Director of the European Center of Atomic and Molecular Computations (CECAM) Lyon France. Since 2007 he is Professor of Chemical Engineering and Chemistry at U.C. Berkeley and Faculty Chemist at Materials Sciences Division, Lawrence Berkeley National Laboratory. Since 2014 he has been director of the Energy Center at EPFL.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Official source

https://en.wikipedia.org/wiki/Enthalpy_of_sublimation

About this result

Related courses (1)

ENV-525: Physics and hydrology of snow

Related lectures (16)

Chemical Equilibria and Reactivity

Explores chemical equilibria, enthalpies, and reactions through examples and calculations.

Snow Processes: Canopy Interactions

Explores snow accumulation and melt in forests, emphasizing snow-vegetation interactions and their modeling.

Phase Transitions: Real Gases

Explores phase transitions, phase diagrams, and the behavior of water.

Related publications (6)

Magnitude and controls of snow sublimation at a high-elevation Swiss alpine site

2026

Magnitude and controls of snow sublimation at a high-elevation Swiss Alpine site

Copernicus GmbH2026

Xenon Dynamic Nuclear Polarization: from Spin Dynamics to In-Vivo Applications

EPFL2026

Related people (1)

Berend Smit

Related concepts (2)

Heat

In thermodynamics, heat is the thermal energy transferred between systems due to a temperature difference. In colloquial use, heat sometimes refers to thermal energy itself. An example of formal vs. informal usage may be obtained from the right-hand photo, in which the metal bar is "conducting heat" from its hot end to its cold end, but if the metal bar is considered a thermodynamic system, then the energy flowing within the metal bar is called internal energy, not heat.

Temperature

Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have relied on various reference points and thermometric substances for definition. The most common scales are the Celsius scale with the unit symbol °C (formerly called centigrade), the Fahrenheit scale (°F), and the Kelvin scale (K), the latter being used predominantly for scientific purposes.