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Azienda News:
- Phase transition from gas to solid - Chemistry Stack Exchange
I guess the diagram of phase changes you have in mind looks like this: Indeed this says deposition is the right name for a gas-to-solid phase transition and I believe that this is the only correct term The only thing I can argue why it is obvious here that condensation is the right answer (at least the closest) is that this is the only answer that gives a transition from fluid to solid B and
- Clarification of Kinetic Energy during Phase Change
During a change of phase, the average kinetic energy of the molecules stays the same, but the average potential energy changes I'm confused as the two bolded statements seem to contradict each other My interpretation is that during a phase change, the temperature remains equal, but the kinetic energy of its particles increase decrease
- Why does temperature remain constant during phase changes?
Phase change is an energy sink moving from solid, to liquid to gas, so more energy input is required In other words, temperature cannot rise because the molecules cannot move faster (increase KE) until phase change is completed
- boiling point - Phases in equilibrium and not in equilibrium . . .
Why are the phase change lines called equilibrium lines if the water vapor is in equilibrium with the water below boiling point? At the boiling point of water, any heat added to the system allows vapor in the body of the liquid to push outward and form bubbles
- Sublimation of Iodine - Chemistry Stack Exchange
To understand this, you need to understand a phase change to gas occurs when the total vapor pressure of substance in a condensed phase (solid or liquid) exceeds the atmospheric pressure
- physical chemistry - Why are solids and liquids not included in the . . .
Therefore it can be seen as a part of the equilibrium constant (The same applies to liquids while deriving for gas phase ) If you would increase the amount of solid in the system you would still not change it's concentration in gas phase
- phase - Do all three states need to be present at triple point . . .
Thus, if solid or liquid were present but the gas pressure was not the vapor pressure, then some of the condensed phase would evaporate (or some gas would condense) to change the free energy of the gas until it was equal to that of the solid or liquid
- Can one predict the entropy change for aqueous phase reactions without . . .
The order of decreasing entropy from the state with highest to lowest entropy is- gas>aqueous>liquid>solid Hence, just know that the entropy is positive when state changes from either liquid or solid to aqueous and it is negative when there is change of state from gas to aqueous
- Does the potential energy increase when temperature is raised?
So I would suspect the potential energy to increase during phase changes that increase entropy (solid $\rightarrow$ liquid and liquid $\rightarrow$ gas), and decrease in the opposite direction However, what about when the temperature is raised for a solid, up until the melting point - will the potential energy increase?
- phase - Can a liquid turn to a solid by applying pressure? - Chemistry . . .
It is possible to change a liquid into a solid, or in general change the phase a substance finds itself in by just altering the pressure You might want to refer to some graphs known as Phase diagrams that portray the effect of temperature and pressure on the physical state of a substance (source: purdue edu) In this example if you're to draw a straight line from the point B to D, it'll have
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