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valentinak56 [21]
4 years ago
13

how does the energy required to sublime a substance compare to the energy required to melt the substance

Chemistry
1 answer:
Darya [45]4 years ago
3 0
The energy required to sublime (solid to gas) a substance at 1 ATM pressure is greater than the energy required to melt (solid to liquid) a substance. When you compare the energies in varying pressures, however, this trend is not always the case. 

<span>any 'general phase diagram', you can see that under the triple point, when all phases are in equilibrium, have solid and gas meeting under a certain pressure. In a vacuum, it would require less energy to sublime than to melt.</span>
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