Question

Which of the following reasons is correct to complete the given reaction in lime
kiln?
CaCO3 gives to CaO + CO2
1) The stability of CO2 is more than CaCO3
2) High temperature
3) Leaving the CO2 into air as soon as it is formed
4) Reaction does not takes place between CaO and CO2
​

Answer 1

Answer:

Lime-kiln is an open vessel. In lime-kiln, the reaction CaCO

3

⇋CaO+CO

2

(g) is irreversible. The carbon dioxide gas escapes in the atmosphere. Hence, only forward reaction occurs. The reaction continues to occur until all calcium carbonate is exhausted.

Explanation:

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