Answer:
The correct answer is -494.6 kJ/mol
Explanation:
Find enclosed the Born Haber cycle for MX. The solid compound M (M(s)) is sublimated to M(g) and then it is ionizated to M⁺. The gaseous compound X₂(g) is first dissociated to its atoms in gaseous phase X(g) and then it is ionizated to give X⁻(g). Lattice energy (LE) is the energy required to form 1 mol of MX(s) from its ions in gaseous phase.
From the cycle, we have:
ΔHºf= ΔHsub + IE + ΔHdis + EA + LE
⇒LE= ΔHºf - ΔHsub - IE - 1/2 ΔHdis - EA
LE= -169.7 kJ/mol - (74.4 kJ/mol) - (538 kJ/mol) - 1/2 (157 kJ/mol) - (-366 kJ/mol)
LE= -494.6 kJ/mol
Answer:
1. Carbon Monoxide
2.Water
3. sulfuric acid
4.sulfur dioxide
Explanation:
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Answer:
when lit, the atoms of different chemical compounds inside the firework absorb energy, when the electrons fall back to lower energy levels, they give off colored light. Depending upon the chemical used, different colors are produced. neon lights or signs are glass tubes filled with neon gas. When the light is plugged in, the electrical energy causes the electrons of neon to jump to higher energy levels, when they go to lower levels, colored light is given off. The neat thing is that the neon never gets used up. The only thing that gets used up is the electricity. The electrons don't get destroyed and can be used over and over again jumping levels. Neon glows with an orange light, but you know that neon signs can be lots of different colors. The variations come when different gases other than neon are used such as argon, or krypton or when the tube is painted so that with the light produced it produces a certain color.
Explanation:
Umm where is the question Is this a question ?
Answer:
1
Explanation:
one possible way its just a theory of what the answer could be
