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Genrish500 [490]
3 years ago
6

Explain the process of preparation of bleaching powder and mention any

Chemistry
2 answers:
Serhud [2]3 years ago
5 0

Answer:

  • Bleaching powder is produced by the action of chlorine  on dry slaked lime.[Ca(OH)2].
  • Ca(OH)2 + Cl2 gives CaOCl2 + H20

Explanation:

<u>Uses:-</u>

  • It is used an oxidising agent in  many chemical industries.
  • It is used for disinfecting drinking water to make it free of germs.
  • It is also used bleaching cotton and linen in the textile industry.

Hope this helps!

Pls don't forget to rate or give brainliest answer!!

grandymaker [24]3 years ago
4 0

Answer:Bleaching powder is synthesized by the action of chlorine gas (produced from the chlor-alkali process) on dry slaked lime (Ca(OH)2).

Ca(OH)2 + Cl2 → CaOCl2 + H2O

Explanation:

   Bleaching powder is a pale yellowish powder existing with a strong smell of chlorine.

   It is soluble in water but due to the presence of impurities, we never observe a clear solution.

   Its chemical formula is CaOCl2 with its chemical name as Calcium hypochlorite.

Calcium hypochlorite

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1: At which temperature would a reaction withΔH = -102 kJ/mol, ΔS = -0.188 kJ/(mol×K) be spontaneous? 2: At which temperature wo
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Answer:

1: At temperatures below 542.55 K

2: At temperatures above 660 K

Explanation:

Hello there!

In this case, according to the thermodynamic definition of the Gibbs free energy, it is possible to write the following expression:

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Whereas ΔG=0 for the spontaneous transition. In such a way, we proceed as follows:

1:

0=\Delta H-T\Delta S\\\\T=\frac{-102kJ/mol}{-0.188kJ/mol-K} \\\\T=542.55K

It means that at temperatures lower than 542.55 K the reaction will be spontaneous.

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It means that at temperatures higher than 660 K the reaction will be spontaneous.

Best regards!

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