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3 years ago

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:

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:

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

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

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