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अभिक्रिया `C_("ग्रेफाइट")+CO_(2)(g)to2CO(g)` के लिए `DeltaH` तथा `DeltaS` के मान क्रमशः 170kJ तथा `170 JK^(-1)` है| यह अभिक्रिया सवतः होगी :
A. `710 K `
B. `910 K`
C. `1110 K`
D. `510 K`

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Correct Answer - C
`because DeltaG=DeltaH-TDeltaS`
अभिक्रिया सवतः ( spontaneous ) होगी जब `DeltaG=-ve` अर्थात `lt 0` होगा |
`:." "DeltaH-TDeltaSle0` या `TDeltaSgtDeltaH`
या ` Tgt( DeltaH)/(DeltaS)=(170xx10^(3))/(170)=1000 K`
अतः `Tgt1000K`

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