Answer:
D i think. Not sure.
Explanation:
I mean i just did it myself, and i dont really do chemistry, but I would say D sorrry if i made you get it wrong!!
The correct answer is A.) Volatile. please mark brainliest (:
Answer:
1: At temperatures below 542.55 K
2: At temperatures above 660 K
Explanation:
Hello there!
In this case, according to the thermodynamic definition of the Gibbs free energy, it is possible to write the following expression:

Whereas ΔG=0 for the spontaneous transition. In such a way, we proceed as follows:
1:

It means that at temperatures lower than 542.55 K the reaction will be spontaneous.
2:

It means that at temperatures higher than 660 K the reaction will be spontaneous.
Best regards!