<span>nitrate. you can tell because the anion is NO3, which cancels out C and D. it's not A either, because nitrite is NO2. :D </span>
<span>Temperature causes water molecules to move more quickly, because each individual molecule has more energy as it gets hotter .
So, the answer is A.
</span>
Answer:
Q_d=35881 J/mol
So the activation energy is 35881 J/mol.
Explanation:
Consider the following equations:


Solving the above two equation to find the Q_d in term of diffusivity and temperature we will get:

where:
Q_d is the activation energy
D_1 is the diffusivity at T_1
D_2 is the diffusivity at T_2

Q_d=35881 J/mol
So the activation energy is 35881 J/mol.