All categories

2 years ago

Which factor is generally responsible for high melting points?

Chemistry

2 answers:

nikdorinn [45]2 years ago

8 0

Answer: Option (A) is the correct answer.

Explanation:

Melting point is defined as the point where a solid substance starts to convert into a liquid state.

For example, ice starts to melt at a temperature above 0 degree celsius.

More strong is the intermolecular forces of attraction present in a substance more will be the heat required by it to break the bonds between its particles. So, that its state can be changed.

For example, a solid substance required more heating as compared to a liquid substance to change its state.

Thus, we can conclude that high intermolecular forces of attraction is generally responsible for high melting points.

vlabodo [156]2 years ago

7 0

A. High intermolecular forces of attraction. If there are high intermolecular forces, the molecules will need large energies to escape into the liquid. The substance will nave a high melting point.

The other options are incorrect because they are weak forces. They would cause low melting points.

You might be interested in

A patient is prescribed 100mg/day of antibiotic for 2 weeks. The antibiotic is available in vials that contain 20mg/vial of the

Nimfa-mama [501]

I have no idea, but i’m pretty sure you gotta divide

4 0

2 years ago

How to determine how many protons

Nataly_w [17]

The number of protons in an elemnet can be determined by looking at the atomic number of the periodic table. Typicaly it is on top of the chemical symbol.

7 0

2 years ago

What are the factors on which solubility depends? explain by giving examples

trasher [3.6K]

Answer:

Solubility is the maximum amount of a substance that will dissolve in a given amount of solvent at a specific temperature. There are two direct factors that affect solubility: temperature and pressure. Temperature affects the solubility of both solids and gases, but pressure only affects the solubility of gases.

Explanation:

4 0

2 years ago

why does a solution of a strong acid conduct electricity better than a solution of a weak acid having the same concentration

Pani-rosa [81]

Strong acids disassociate more compared to weak acids. Since there are more ions, due to more disassociation, there are more ions for electrons to flow through.

3 0

3 years ago

A certain solution of methylamine has a pOH of 6.8, while a solution of pyridine has a pOH of 6.0. Which solution has a greater

Liono4ka [1.6K]

Answer:

Pyridine solution has a greater concentration of hydroxide ions.

Explanation:

The pOH of the solution is defined as negative logarithm of hydroxide ion concentration in a solution.

$pOH=-\log [OH^-]$

Higher the value of pOH lessor will be the hydroxide ion concentration and higher the concentration of hydrogen ions in the solution .
Lower the value of pOH higher will be the hydroxide ion concentration and lower the concentration of hydrogen ions in the solution.

1) The pOH of the methylamine = 6.8

$6.8=-\log[OH^-]$

$[OH^-]=1.5848\times 10^{-7} M$

2) The pOH of the pyridine = 6.0

$6.0=-\log[OH^-]$

$[OH^-]=0.000001 M=1.0\times 10^{-6} M$

Pyridine solution has a greater concentration of hydroxide ions than the solution of methylamine.

8 0

3 years ago