Answer:
T = 3006.976 K
Explanation:
∴ ΔH° = 125 KJ/mol ( 800K - 1500K)
∴ ΔG° = 25 KJ/mol (1150 K)
⇒ T = ? ∴ K > 1
In the equilibrium:
∴ K > 1
If ΔG°/RT = 1
⇒ e∧(1) = 2.72 > 1
∴ ΔG°/RT = 1
⇒ T = ΔG°/R = (25 KJ/mol)/(8.314 E-3 KJ/mol.K)
⇒ T = 3006.976 K
verifying:
⇒ K = e∧(25/((8.314 E-3)(3006.976)))
⇒ K = 1.000000061 > 1
<span>The correct answer among the choices given is option D. Copper does not form a diatomic molecule. A diatomic molecule has only two atoms.
Diatomic molecules are molecule that are composed of two same atoms which are
bonded covalently. An example are oxygen, it exist as O2 and chlorine, it
exist as Cl2.</span>
You can tell that the atom is in the excited state because:
- Electron configuration should follow the 2-8-8-2 rule, meaning that the inner shell should be filled before the next shell can start holding electrons.
- Instead of the atom's electron configuration being in the ground state at 2-8-8-1, electrons from the second shell have jumped to the third.
Answer : The percent by mass of the solution is 7.81 %
Explanation : Given,
Mass of NaCl = 8.75 g
Mass of solution = 112.0 g
Now we have to determine the percent by mass of the solution.
Putting values in above equation, we get:
Therefore, the percent by mass of the solution is 7.81 %
I believe your answer would be helium friend :)
