Chemistry
Grade-8
Easy
Question
What happens to the atoms during the process of sublimation?
- They slow down and move closer together.
- They speed up and move farther apart.
- They slow down and move farther apart.
- They speed up and move closer together.
Hint:
In the process as solid is converted to gas molecules.
The correct answer is: They speed up and move farther apart.
Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state. Sublimation is an endothermic process that occurs at temperatures and pressures below a substance's triple point in its phase diagram, which corresponds to the lowest pressure at which the substance can exist as a liquid.
In the process as solid is converted to gas molecules move farther apart. The atoms during the process of sublimation they speed up and move farther apart.
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