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UkoKoshka [18]
3 years ago
6

How does boyle's law relate to breathing?

Chemistry
1 answer:
AnnyKZ [126]3 years ago
6 0
It is the inverse relationship of Pressure and Volume of Boyle's Law that creates the pump - vacuum activity that allows for us to breathe.
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The equilibrium constant k for the synthesis of ammonia is 6.8x105 at 298 k. what will k be for the reaction at 375 k?
spayn [35]
Answer is: K <span>be for the reaction at 375 K is 326.
</span>Chemical reaction: N₂(g) + 3H₂(g) ⇌ 2NH₃(g); ΔH = -92,22 kJ/mol.
T₁<span><span> = 298 K
</span>T</span>₂<span><span> = 375 K
</span><span>Δ<span>H = -92,22 kJ/mol = -92220 J/mol.
R = 8,314 J/K</span></span></span>·mol.<span>
K</span>₁ = 6,8·10⁵.<span>
K</span>₂ = ?The van’t Hoff equation: ln(K₂/K₁) = -ΔH/R(1/T₂ - 1/T₁).
ln(K₂/6,8·10⁵) = 92220 J/mol / 8,314 J/K·mol (1/375K - 1/298K).
ln(K₂/6,8·10⁵) = 11092,13 · (0,00266 - 0,00335).
ln(K₂/6,8·10⁵) = -7,64.
K₂/680000= 0,00048
K₂ = 326,4.
6 0
3 years ago
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Which may be true for a substance that absorbs energy?
irinina [24]
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A water sample is found to contain 59 ppm
NeX [460]

Explanation:

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8 0
3 years ago
Please help!!! due soon!
Veseljchak [2.6K]

Answer:

Always stays the same.

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Hoped this helped :D
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3 years ago
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