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Glite Dictionary
heat of sublimation

heat of sublimation

1 8.2
The amount of heat needed to change a solid directly into a gas without becoming liquid
  • noun
  • /hiːt əv ˌsʌblɪˈmeɪʃən/
  • Specialized
translation icon : calor de sublimación
  • The heat of sublimation for dry ice is quite significant.

Examples

  • Accurate calculation of heat of sublimation is essential in chemical thermodynamics.

  • The heat of sublimation for dry ice is much higher than for water ice.

  • Scientists measured the heat of sublimation required to turn iodine crystals into vapor.

  • Do you know the heat of sublimation for carbon dioxide?

  • The heat of sublimation for carbon dioxide is crucial for understanding its transition from solid to gas.

  • When dry ice sublimates, it absorbs a significant amount of heat of sublimation, which is about 571 kilojoules per kilogram.

  • Scientists measured the heat of sublimation to determine how much energy is needed for the solid to become a gas.

Synonyms

latent heat
vsheat of sublimation
  • Specialized
1 5.0

Heat taken in or given out when a material changes state, such as melting and boiling

is the specific energy absorbed per mass when solid turns directly to vapor
heat of transformation
vsheat of sublimation
  • Specialized
7.3

Amount of energy absorbed or released when a substance changes state like ice melting

is confined to direct solid to vapor transitions rather than all phase changes

Surface Forms

heat of sublimation singular
heats of sublimation plural

Morphology

heat + of + sublimation

The phrase is a straightforward noun phrase combining 'heat' (energy transfer) with 'sublimation' (the phase change from solid to gas), so its meaning — the heat associated with sublimation — is directly derivable from the constituents. Although technical, this compositional pattern ('heat of X') is regular and mirrored in other languages, so a learner who knows the component words would comprehend it.

Etymology

Heat of sublimation starts from the image of a solid turning straight into a gas, like dry ice that makes fog and seems to disappear without melting. Here heat means the energy needed and sublimation means changing from 'solid' to 'vapor' without becoming a 'liquid', so the phrase names the heat needed for that direct change.