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Verizon [17]
3 years ago
9

Benzene, C6H8, has an enthalpy of fusion = 10.19 kJ/mol. Calculate the amount of energy which is needed to change 88.0 g of soli

d benzene at 5.53°C into liquid benzene, also at 5.53°C?
Chemistry
1 answer:
Mandarinka [93]3 years ago
5 0

Answer: About 10,200 Joules of heat is required to transform 80.0 g of solid benzene at 5.53°C into liquid benzene, also at 5.53°C.
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At higher temperatures,
valentinak56 [21]

Answer:

reaction rates increase because reactants move faster, collide more often, and produce more collisions with the required energy of activation.

Explanation:

<em>A</em><em>t</em><em> </em><em>h</em><em>i</em><em>g</em><em>h</em><em>e</em><em>r</em><em> </em><em>t</em><em>e</em><em>m</em><em>p</em><em>e</em><em>r</em><em>a</em><em>t</em><em>u</em><em>r</em><em>e</em><em>s</em><em>,</em><em> </em>the reactant atoms gain high kinetic energy which decreases the intermolecular forces of attraction between these atoms/molecules.

Hence the rate of collision is very high which decreases the activation energy and products are formed with in a short period of time.

3 0
3 years ago
Which factor does not influence the rate of a chemical reaction
KonstantinChe [14]
<span>Factors that influence the reaction rates of chemical reactions include the concentration of reactants, temperature, the physical state of reactants and their dispersion, the solvent, and the presence of a catalyst.</span>
5 0
3 years ago
Cuando los volcanes entran en erupción lanzan al exterior porciones de materia muy variada ¿cuales fueron los productos de la er
DENIUS [597]

Answer:

The Etna volcano when it previously erupted released a lot of smoke, and then volcanic lava.

Explanation:

The eruption of this volcano was on the Italian island of Sicily.

Where there were large columns of smoke and after that the volcanic magma in a viscoelastic state was released into the external environment.

Some sources claim that the eruption of this volcano reached the areas of Zaffanera.

7 0
3 years ago
Which of these statements is an example of a prediction? A;birds are red, blue, and brown. B;birds are large. C;if you walk near
miss Akunina [59]

Answer:

C

Explanation:

If you walk near them, they will fly away

5 0
3 years ago
Read 2 more answers
OHC-CH2-CH2-CH2-CHO<br><br> What is the IUPAC name of this compound ?
Rufina [12.5K]

Answer:

Pentan_1,5_di-al

Explanation:

OHC-CH₂-CH₂-CH₂-CHO

This is Pentan_1,5_di-al

If we break this compound, we will observe that there is presence aldehyde group and hence the functional group "al". This aldehyde is bonded to carbon 1 and carbon 5 respectively.

Also the pentan is due to presence of 5 carbon atoms.

Therefore, the IUPAC name of this compound (OHC-CH₂-CH₂-CH₂-CHO) is  Pentan_1,5_di-al

5 0
3 years ago
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