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

The correct answer is Option 1.

Explanation:

It is given that the process is endothermic which means that

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, must be negative.

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

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

Hence, the correct answer is Option 1.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

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