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In the preparation of CaO from CaCO(3) u...

In the preparation of CaO from `CaCO_(3)` using the equilibrium,
`CaCO_(3)(s) hArr CaO(s)+CO_(2)(g)`
`K_(p)` is expressed as
`log K_(p)=7.282-8500/T`
For complete decomposition of `CaCO_(3)`, the temperature in celsius to be used is:

A

1167

B

894

C

8500

D

850

Text Solution

Verified by Experts

The correct Answer is:
B
For decomposition , `K_(p) = 1.`
` :. Log 1 = 7.282 - 8500/ T`
i.e., `7.282 = 8500/T (log 1 = 0 ) `
or `T = (8500)/(7.282) = 1167 K`
`= 1167 - 273 ^(@) C = 894 ^(@)C.`
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