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Sublimation of a substance, for example, of frozen carbon dioxide or dry ice, involves the substance's absorbing heat energy from its surroundings. Hence, the dry ice itself gains the energy needed to change from solid to gas, and the surroundings lose the energy, and indeed are perceived as colder. Sublimation of a substance, for example, of frozen carbon dioxide or dry ice, involves the substance's absorbing heat energy from its surroundings. Hence, the dry ice itself gains the energy needed to change from solid to gas, and the surroundings lose the energy, and indeed are perceived as colder.
Wiki User
∙ 16y ago
Wiki User
∙ 11y agoDeposition is exothermic--it releases heat.
Freezing and condensation are also generally exothermic.
In contrast, fusion, sublimation and and vaporization are generally endothermic.
Wiki User
∙ 10y agoHeat is lost due to gas, a hot substance, going into a colder substance
Wiki User
∙ 13y agoabsorbed
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What happens to heat during an endothermic reaction?
Heat is absorbed.
Explain what is meant by the sublimation of iodine at 184 C?
We know that iodine's heat of sublimation is 56.94cal/g, so I believe that you can find the heat of sublimation at a specific temperature if you have a know amount of grams.
What do you call the heat energy that is released or absorbed during a change of state of water?
latent heat of fusion, or of vaporisation or enthalpy of fusion, or of vaporisation Please see the link
What influences the amount of heat absorbed or released by the air?
the amount of heat absorbed and released by earth are influenced by the green house effect .
What process releases the latent heat of water vapor to make the air warmer?
1. Process that release "Latent Heat" : a. Freezing, b. Condensation, - (Greatest amount of released Latent Heat.) c. Deposition. 2. Process that absorbs "Latent Heat" : a. Melting, b. Evaporation, - (Greatest amount of absorbed Latent Heat.) c. sublimation.
Is heat released or absorbed during sublimination?
Sublimation is when a solid turns into a gas. During sublimation the solid gains energy to turn into a solid.
Is energy gained during sublimation?
Energy is added when sublimation occurs, because it skips the liquid sates and goes strait from a solid to a gas. And to break particles apart, you must add heat, so energy is gained.
What happens to heat during an endothermic reaction?
Heat is absorbed.
What processes are endothermic?
During an endothermic process heat is absorbed.
Is heat taken away or added in sublimation?
Sublimation is an endothermic physical change (heat is needed).
Calculate molar heat of sublimation?
You could calculate the molar heat of sublimation as long as you know by placing a known amount of a known quantity in a calorimeter and measuring the change in temperature during sublimation. Then use the equation E=mc(change in T) where E is energy in joules, m is mass, c is heat capacity, and T is temperature.
What is thermochemical analysis?
This is the study of heat released/absorbed during chemical reactions.
What is an insulated device used for measuring the amount of heat absorbed or released during a reaction?
An insulated device used for measuring the amount of heat absorbed or released during a reaction is called a calorimeter.
What are affected by an increase in intermolecular forces?
Capillary attraction, Melting point, Heat of vaporization Sublimation temperature, Surface tension, Vapor pressure, Heat of fusion Boiling point, Viscosity, Density, Heat of sublimation Apex: Boiling point, viscosity, heat of sublimation, density.
Is heat absorbed or released during evaporation?
Heat is absorbed by the molecules leaving the place the evaporation is occuring. That is why, after putting aftershave or cologne, you feel cold. The alcohol in the aftershave/cologne has evaporated and taken the heat from your face with it.
Is sweating is a prof of heat absorbed or heat release?
heat release
How much heat is absorbed when 500 g of water Cp equals 4184 Jg oC goes from 250 oC to 350 oC?
Heat gained by one object = Heat lost by the other. Does that help?
