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Alex17521 [72]
3 years ago
12

Why does graphite and diamond sublime?

Chemistry
1 answer:
GREYUIT [131]3 years ago
8 0

Answer:

The intermolecular bonding in the solid is van der Waals dispersion forces. That means that it will have a lower melting point than diamond or graphite where you have giant covalent bonding. In fact C60 sublimes at 800 K (527°C). Diamond and graphite sublime at around 4000 K.

Explanation:

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8 0
2 years ago
Which statement is true about molecule speed? (1 point)
ANTONII [103]

Faster molecules have fewer collisions than slower molecules is True about molecular speed.

<h3>What is Molecular speed?</h3>

Molecular speed refers to the average distance gases or molecules travelled atca particular time rate.

It is valid in ideal gas, where the molecules do not interact with others.

Average molecular speed = Square root (3 (ideal gas constant) * (Temperature)/m)

Therefore, Faster molecules have fewer collisions than slower molecules is True about molecular speed.

Learn more about molecular speed from the link below.

brainly.com/question/14327643

8 0
2 years ago
A fixed amount of oxygen gas is held in a .500 L tank at a pressure of 4.39 atm. The tank is connected to an empty 1.50 L tank b
DochEvi [55]

Answer:

1.0975 atm.

Explanation:

<em>According to Boyle’s Law:</em> " At constant temperature , the  volume of a given quantity of a gas  varies inversely with its pressure".

P α 1/V.

<em>∴ P₁V₁ = P₂V₂.</em>

P₁ = 4.39 atm, V₁ = 0.5 L.

P₂ = ??? atm, V₂ = 2.0 L.

<em>∴ P₂ = P₁V₁/V₂</em> = (4.39 atm)(0.5 L) / (2.0 L) = <em>1.0975 atm.</em>

5 0
3 years ago
Which contains the greatest number of moles of oxygen atoms: 1 mol of ethanol (c2h5oh), 1 mol of formic acid (hco2h), or 1 mol o
Darina [25.2K]
1 mol of formic acid is correct. There are two oxygen atoms in formic acid, compared to just one for the other molecules.
7 0
3 years ago
Why is it important for the pH of blood to remain constant?
lesya692 [45]
It is important for the pH of blood to remain constant because your blood would ionize and burn up if the pH wasn't constant. And if the pH was too high, bacteria ( good and bad, and foreign) would end up dying, as well as yourself.
8 0
3 years ago
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