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Even though the process is endothermic, snow can sublime. Which tendency in nature accounts for this phase change?

(1) a tendency toward greater entropy(2) a tendency toward greater energy(3) a tendency toward less entropy(4) a tendency toward less energy

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Even though the process is endothermic, snow can sublime. The tendency in nature that accounts for this phase change is that there is a tendency toward greater entropy. The answer is number 1. The rest of the choices do not answer the question above.

User Dmitry Dedov
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Answer: The correct answer is Option 1.

Step-by-step explanation:

It is given that the process is endothermic which means that
\Delta H=+ve

The snow is subliming which means that it is changing its state from solid state to gaseous state directly and for this phase change to take place,
\Delta G must be negative.

As, for sublimation process,
\Delta S is always increasing and for spontaneous reaction, temperature must also be high.


\Delta G=\Delta H-T\Delta S


-ve=+ve-T(+ve)

At higher temperature,
\Delta G will always be negative and it will be spontaneous reaction and phase change will occur.

Hence, the correct answer is Option 1.

User Diaa
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