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For the chemical equilibrium CaCO(3)(s)h...

For the chemical equilibrium `CaCO_(3)(s)hArrCaO(s)+CO_(2)(g),Delta_(r)H^(@)` can be determined from which one of the following plots?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
`CaCO_(3)(s) hArr CaO(s)+CO_(2)(g)`
`K_(p)=P_(CO_(2))`
According to Arrhenius equation:
`K=Ae^(-DeltaHɵ_(r )//RT)`
`"log" K_(p)= log A-(DeltaH_(r)^(@))/(2.303 RT)`
`log P_(CO_(2))=log A-(DeltaH_(r )^(@))/(2.303R)1/T …(i)`
`Y=C+MX`
Graph (a) represents (i) and its slope will be used to determine the heat of the reaction.
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