CUALES SON LAS GENERALIDADES DE LA MATERIA

Chemistry

1 answer:

timofeeve [1]3 years ago

6 0

Answer:

Materia es todo aquello que nos rodea, ocupa un lugar en el espacio, y tiene masa. En nuestro planeta, la materia se encuentra en tres estado: gaseoso, líquido y sólido. ... Esta masa sólida es llamada geosfera. En estos tres estados de la materia existe un patrón común: en todos, la materia está formada por moléculas.

Explanation:

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If the pressure on the surface of water in the liquid stato

Novosadov [1.4K]

The water will boil at C) 80°C

<h3>Further explanation</h3>

Given

Vapour pressure of water = 47 kPa

Required

Boiling point of water

Solution

We can use the Clausius-Clapeyron equation :

$\tt ln(\dfrac{P_1}{P_2})=\dfrac{-\Delta H_{vap}}{R}(\dfrac{1}{T_1}-\dfrac{1}{T_2})$

Vapour pressure of water at boiling point 100°C=101.325 kPa

ΔH vap for water at 100°C=40657 J/mol

R = 8.314 J/mol K

T₁=boiling point of water at 101.325 kPa = 100+273=373 K

Input given values :

$\tt ln\dfrac{101.325}{47}=\dfrac{-40657}{8.314}(\dfrac{1}{373}-\dfrac{1}{T_2})\\\\0.7682=4890.1852(\dfrac{1}{373}-\dfrac{1}{T_2})\\\\0.0001571=(\dfrac{1}{373}-\dfrac{1}{T_2})\\\\\dfrac{1}{T_2}=0.00283\rightarrow T_2=353~K=80^oC$

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3 years ago

In your own words describe the difference between the movement of particles in liquids and the movement of particles in gases.

xxMikexx [17]

In liquids, particles are slightly spaced from each other and move around somewhat freely, but still bump into each other. Gases on the other hand move randomly and rarely bump into each other, thus they are more spaced out.

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3 years ago

Which forces are intramolecular and which intermolecular?

AleksAgata [21]

Butter won't melt in a fridge because of intermolecular tensions. While the bonds inside of the fat molecules are unbroken, the attractions between the fat molecules are weaker.

What intermolecular forces are present in butter?

The intermolecular forces known as London dispersion forces are the weakest and are most prominent in hydrocarbons. Due to the fact that butter molecules are hydrocarbons, London dispersion forces do exist between them.

How do intermolecular forces affect melting?

More energy is required to stop the attraction between these molecules as the intermolecular forces become more powerful. Because of this, rising intermolecular forces are accompanied with rising melting points.

Which forces are intramolecular and which are intermolecular?

Intramolecular forces are those that hold atoms together within molecules. The forces that hold molecules together are known as intermolecular forces.

Learn more about intermolecular forces: brainly.com/question/9328418

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