I would like to help you, but you are not showing the options. just their letter.
Answer:
I think it is the second one
Explanation:
Because what the cold water did to the table salt, is that it separated its molecules dissolving the salt.
even though the rock salt was in hot water it was a bigger particle. But the big difference was only because the water temperature ️.
The best answer is "<span>High temperatures increase the activation energy of the reaction."
The Haber process is an exothermic reaction at room temperature. This means that the reaction actually favors the reverse reaction, especially when the temperature is increased. So why increase the reaction temperature?
The reason for this is that nitrogen is a very stable element. Therefore, more energy is needed to overcome the slow rate of reaction. So the reaction temperature must be low enough to favor a forward reaction, but high enough to speed up the reaction.</span>