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If the standard molar enthalpy of format...

If the standard molar enthalpy of formation of `CaO_((s)), CO_(2(g)) "and" CaCO_(3(s))` is `-635, -393 "and" -1207 kJ mol^-1` respectively, the `Delta_r H^@` in kJ `mol^01` for the reaction
`CaCO_(3(s)) to CaO_((s)) + CO_(2(g))` is ________ .

A

`+965`

B

`+2235`

C

`+179`

D

`-179`

Text Solution

Verified by Experts

The correct Answer is:
C
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