Home
Class 11
CHEMISTRY
Given that 3C(s)+2Fe(2)O(3)(s)rarr4Fe(...

Given that
`3C(s)+2Fe_(2)O_(3)(s)rarr4Fe(s)+3CO_(2)(g);`
`Delta H^(@)=-93657kcal` at `25^(@)C`
`3C(s)+3O_(2)(g)rarr3CO_(2)(g);`
`Delta H^(@)=-94050kcal` at `25^(@)C`
The value of `Delta H_(f)^(@),Fe_(2)O_(3)` is
`16.750kcal`
`-16.750kcal`
`- 196.5kcal`
`-393kcal`

Promotional Banner

Similar Questions

Explore conceptually related problems

Given (i) 2Fe_(2)O_(3)(s) rarr 4Fe(s)+3O_(2)(g) , DeltaG^(@)=+1487.0 kj mol^(-1) (ii) 2CI(g)+O_(2) rarr 2CO_(2)(g) , Delta_(r )G^(@)=-514.4 kj mol^(-1) Free energy change Delta_(r)G^(@) for the reaction 2Fe_(2)O_(3)(s)+6CO(g) rarr 4Fe(s)+6cO_(2)(g) will be :

For the reaction at 25^(@)C, C_(2)O_(4)(l) rarr 2XO_(2)(g) Delta H =2.1 kcal and DeltaS=20 cal K^(-1) . The reaction would be :

According to the following reaction C(S)+1//2O_(2)(g)rarr CO(g), Delta H=-26.4 Kcal

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

If, H_(2)(g)+Cl_(2)(g)rarr 2HCl(g) , Delta H^(@)=-44 Kcal 2Na(s)+2HCl(g)rarr 2NaCl(s)+H_(2)(g), Delta H=-152 Kcal Then, Na(s)+0.5Cl_(2)(g)rarr NaCl(s) , Delta H^(@) = ?

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

C(s)+O_(2)(g)toCO_(2)(g),DeltaH=-94 kcal 2CO(g)+O_(2)to2CO_(2),DeltaH=-135.2 kcal The heat of formation of CO(g) is

Fe_(2)O_(2)(s)+(3)/(2)C(s)to(3)/(2)CO_(2)(g)+2Fe(s) DeltaH^(@)=+234.12KJ C(s)+O_(2)(g)toCO_(2)(g) DeltaH^(@)=-393.5KJ Use these equations and DeltaH^(@) value to calculate DeltaH^(@) for this reaction : 4Fe(s)+3O_(2)(g)to2Fe_(2)O_(3)(s)

Find Delta H_(f)^(@) of Fe_(2)O_(3)(s) if the standard heat reaction Fe_(2)O_(3)(s)+3CO(g)rarr 2Fe(s)+3CO_(2)(g) is -6.6 kcal. Given Delta H_(f)^(@)CO(g)=-26.4 kcal. Delta H_(f)^(@)CO_(2)(g)=-94 kcal .

The following teo reaction are known : Fe_(2)O_(3)(s)+3CO(g)rarr2Fe(s)+3CO_(2)(g) , Delta H= -26.8 kJ FeO(s)+CO(g)rarr Fe(s)+CO_(2)(g) , Delta H = - 16.5 kJ Correct target equation is Fe_(2)O_(3)(s)+CO(g)rarr 2FeO(s)+CO_(2)(g), Delta H = ?