Answer : The energy for vacancy formation in silver is,
Explanation :
Formula used :
or,
So,
where,
= equilibrium number of vacancies =
E = energy = ?
M = atomic weight = 107.9 g/mole
= Avogadro's number =
= density =
T = temperature =
K = Boltzmann constant =
Now put all the given values in the above formula, we get:
Therefore, the energy for vacancy formation in silver is,
2-7 days, but depends on the procedure
<span>This question can best be answered using a Periodic Table of Elements. All the elements are listed by their atomic number starting from the top left and moving right and down the table. Starting at element 8, you will find Oxygen with a mass of 15.99 amu, followed by element 9 Fluorine with a mass of 18.99 , element 10 Neon with a mass of 20.18 , element 11 Sodium with a mass of 22.99. Writing them with their symbols you would have; O, F, Ne, Na.</span>
Answer:
d.) Microwave photons cause the molecules to increase their rotational energy states, whereas infrared photons cause electrons in the molecules to increase their electronic energy states.
Explanation:
Microwave: transitions in the molecular rotational levels
Infrared: transitions in molecular vibrational levels
UV/Visible: transitions in electronic energy levels.