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For the reaction, CaCO(3)(s) hArr CaO(s)...

For the reaction, `CaCO_(3)(s) hArr CaO(s) + CO_(2)(g)` partial pressure of `CO_(2)` at 1000 K is 0.003 atm. `Delta G^(@)`= 27.2 kcal. Calculate the value of `Delta G`

A

12.6k cal

B

15.6 k cal

C

13.4 kcal

D

14.2 kcal

Text Solution

Verified by Experts

The correct Answer is:
B
`CaCO_(3)(s) hArr CaO(s) + CO_(2)(g)`
`K_(p) = P_(CO_(2))= 0.003` atm
`Delta G= Delta G^(@) + 2.303RT log K_(p)`
`=27.2 + 2.303 xx 2 xx 1000 xx log 0.003`
=15.6 kcal
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