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MaRussiya [10]
3 years ago
9

Which property of manganese dioxide helps it turn hydrogen peroxide into water faster than it would without it?

Chemistry
2 answers:
yKpoI14uk [10]3 years ago
6 0
I’m going to say B.
Katen [24]3 years ago
3 0

Answer:

B is the correct answer.

......Hopefully it it helpful.......

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Br2(g) cl2(g)⇌2brcl(g) δh∘f for brcl(g) is 14. 6 kj/mol. Δs∘f for brcl(g) is 240. 0 j/mol
max2010maxim [7]

The Change in Gibb's free energy, ΔG for the reaction at 298K is; -56.92KJ.

<h3>Gibb's free energy of reactions</h3>

It follows from the Gibb's free energy formula as expressed in terms of Enthalpy and Entropy that;

  • ΔG = ΔH - TΔS

On this note, it follows that;

  • ΔG = 14.6 - (298× 0.24)

Hence, the Gibb's free energy for the reaction is;

  • ΔG = 14.6 - 71.52
  • ΔG = -56.92KJ

Remarks: The question requires that we determine the Gibb's free energy for the reaction at 298K.

Read more on Gibb's free energy;

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2 years ago
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Goshia [24]
The most appropriate answer is B !!

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3 years ago
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When the temperature of a sample of liquid increases , what else increases ?
Lubov Fominskaja [6]

Answer:

Its kinetic energy.

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In a liquid, the molecules are so close together that there is very little empty space. A liquid also has a definite volume, because molecules in a liquid do not break away from the attractive forces. The molecules can, however, move past one another freely, and so a liquid can flow, can be poured, and assumes the shape of its container.

An increase in the temperature of a liquid causes an increase in the average speed of its molecules. As the temperature of a liquid increases, the molecules move faster thereby increasing the liquid's kinetic energy.

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