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[" Q.32Given "C(s)+O(2)(g)longrightarrow...

[" Q.32Given "C(s)+O_(2)(g)longrightarrow CO_(2)(g)+94.2" Keal "],[H_(2)(g)+1/2O_(2)(g)rarr H_(2)O(ell)+68.3" Keal "],[CH_(4)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(ell)+210.8" Keal "],[" The heat of formation of methane in Kcal will be "],[[" (A) "-45.9," (B) "47.8," (C) "-20.0," (D) "47.3]]

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Given C(s)+O_(2)(g)rarr CO_(2)(g)+94.2 Kcal H_(2)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l)+210.8 Kcal The heat of formation of methane in Kcal will be

If C(s)+O_(2)(g)to CO_(2)(g)+94.2 Kcal H_(2)(g)+(1)/(2)O_(2)(g)to H_(2)O(l)+68.3 Kcal CH_(4)(g)+2O_(2)(g)to CO_(2)(g)+2H_(2)O+210.8 Kcal then the heat of formation of methane will be

Given that - 2C(s)+2O_(2)(g)rarr 2CO_(2)(g) Delta H = -787 KJ H_(2)(g)+ 1//2O_(2)(g)rarr H_(2)O(l) Delta =-286 KJ C_(2)H_(2)(g)+(5)/(2)O_(2)(g)rarr H_(2)O(l) + 2CO_(2)Delta H=-1310 KJ Heat of formation of acetylene is :-

Given that - 2C(s)+2O_(2)(g)rarr 2CO_(2)(g) Delta H = -787 KJ H_(2)(g)+ 1//2O_(2)(g)rarr H_(2)O(l) Delta =-286 KJ C_(2)H_(2)(g)+(5)/(2)O_(2)(g)rarr H_(2)O(l) Delta H=-1310 KJ Heat of formation of acetylene is :-

If C+O_(2) to CO_(2)+94.2kcal H_(2)+(1)/(2)O_(2) to H_(2)O+68.3"kcal" CH_(4)+2O_(2) to CO_(2)+2H_(2)O+210.8"kcal" Then, the heat of formation of methane will be

Given that: i. C(s) + O_(2)(g) rarr CO_(2)(g) , DeltaH =- 94.05 kcal ii. H_(2)(g) +(1)/(2) O_(2)(g) rarr H_(2)O(l), DeltaH =- 68.32 kcal iii. C_(2)H_(2)(g) +(5)/(2) O_(2)(g) rarr 2CO_(2)(g) +H_(2)O(l), DeltaH =- 310.62 kcal The heat of formation fo acetylene is

Given that: i. C(s) + O_(2)(g) rarr CO_(2)(g) , DeltaH =- 94.05 kcal ii. H_(2)(g) +(1)/(2) O_(2)(g) rarr H_(2)O(l), DeltaH =- 68.32 kcal iii. C_(2)H_(2)(g) +(5)/(2) O_(2)(g) rarr 2CO_(2)(g) +H_(2)O(l),DeltaH =- 310.62 kcal The heat of formation fo acetylene is