Hydrogen chloride gas on heating above $500 ° C$ gives hydrogen and chlorine gas. This reaction is an example of __________. [thermal dissociation/thermal decomposition]

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Solution

Hydrogen chloride gas on heating above $500 ° C$ gives hydrogen and chlorine gas. This reaction is an example of thermal dissociation.
1. Thermal dissociation is a reversible decomposition reaction in which a substance decomposes as the temperature rises.
2. When a substance undergoes thermal dissociation, it might split into multiple different compounds.
3. When hydrogen chloride gas is heated over $500 ° C$ , it dissociates into hydrogen and chlorine.
$2 H C l (g) \to H_{2} (g) + C l_{2} (g) (H y d r o c h l o r i c a c i d) (H y d r o g e n) (C h l o r i d e)$

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Hydrogen chloride gas on heating above 500°Cgives hydrogen and chlorine gas. This reaction is an example of __________. [thermal dissociation/thermal decomposition]

Hydrogen chloride gas on heating above $500 ° C$ gives hydrogen and chlorine gas. This reaction is an example of __________. [thermal dissociation/thermal decomposition]