1.

K_(p) for the reactionMgCO_(3_((s))) to MgO_((s)) + CO _(2_((g)))" is" 9 xx 10^(-10). CalculateDelta G^(@) for thereactionat 25^(@)C.

Answer»


Solution :Given : `K_(p) = 9 xx 10^(-10)`
Temperature`= T = 273+ 25 =298 K `
`Delta G^(@) = ? `
`Delta G^(@) =- 2 .303RT log_(10) K_(p)`
`=-2.303x 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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