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`K_(p)` for the reaction `MgCO_(3_((s))) to MgO_((s)) + CO _(2_((g))) " is " 9 xx 10^(-10)`. Calculate `Delta G^(@)` for the reaction at `25^(@)C`. |
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Answer» Correct Answer - `Delta G^(@) = 51.653 kJ mol^(-1)` Given : `K_(p) = 9 xx 10^(-10)` Temperature `= T = 273 + 25 =298 K ` `Delta G^(@) = ? ` `Delta G^(@) =- 2 .303 RT log_(10) K_(p)` `=-2.303 x 8.314 xx 298 xx log_(10) 9 xx 10^(-10)` `=- 2.303 xx 8. 314 xx 298 xx [bar(10).9542]` `=- 2.303 xx 8.314 xx 298 xx [ - 9.0458]` `= 51683 J mol^(-1)` `=51. 683 kJ mol^(-1)` |
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