Home
Class 11
CHEMISTRY
Using the listed [DeltaG(f)^(@) values] ...

Using the listed [`DeltaG_(f)^(@)` values] calculate `DeltaG^(@)` for the reaction :
`3H_(2)S(g)[-33.6] +2HNO_(3)(l)[-80.6]rarr2NO(g)[+86.6]+4H_(2)O(l)[-237.1]+3S(s)[0.0]`

A

`-513.2`

B

`-1037.0`

C

`+433.4`

D

`+225.0`

Text Solution

Verified by Experts

The correct Answer is:
A

`DeltaG^(@)=2xx86.6+4xx(-237.1)`
`" "+3xx0-3(-33.6)`
`" "-2(-80.6)=-513.2`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 1 (Q.1 To Q.30)|6 Videos
  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 1 (Q.31 To Q.60)|2 Videos
  • STOICHIOMETRY

    NARENDRA AWASTHI|Exercise Level 3 - Subjective Problems|20 Videos

Similar Questions

Explore conceptually related problems

Calculate DeltaG_(298)^(@) and DeltaS_(298)^(@) for the reaction : 2H_(2(g))+O_(2(g)) rarr 2H_(2)O_((l)): DeltaH_(298)^(@) = -136.64kcal . Given that O_(2(g))+4H^(+)+4e rarr 2H_(2)O_((l)), E^(@) = 1.23V 2H_(2(g)) rarr 4H^(+)+4e, E^(@) = 0.00V

the value of DeltaG for the process H_(2)O(s) rarr H_(2)O at 1 atm and 260 K is

Calculate Delta_(r)G^(Theta) for the following reactions using Delta_(f)G^(Theta) values and and predict which reactions are spontaneous. a. Ca(s) +CI_(2)(g) rarr CaCI_(2)(s) b. H_(2)O(s) rarr Hg(l) +(1)/(2)O_(2)(g) c. NH_(3)(g) +2O_(2)(g) rarr HNO_(3)(l) +H_(2)O(l) Delta_(f)G^(Theta) value (kJ mol^(-1)) are: CaCI_(2)(s) =- 748.1, HgO(s) =- 58.84 NH_(3)(g) =- 16.45, HNO_(3)(l) = - 80.71 , H_(2)O(l) =- 237.13

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 :

Calculate the Delta_(r)G^(@) for the reaction: C_(6)H_(12)O_(6)(s) + 6O_(2)(g) to 6CO_(2)(g) + 6H_(2)O(l) Delta_(f)G^(@) values (kJ mol^(-1) ) are : C_(12)H_(12)O_(6)(s) = -910.2, CO_(2)(g) = -394.4, H_(2)O(l) = -237.2

Use the information in the table to calculate the enthalpy of this reaction . C_(2)H_(6)(g)+(7)/(2)O_(2)(g)to2CO_(2)(g)+3H_(2)O(l) {:(Reaction ,DeltaH_(f)^(@)KJ.mol^(-1)),(2C(s)+3H_(2)(g)toC_(2)H_(6)(g),-84.7),(2C(s)+O_(2)(g)toCO_(2)(g),-393.5),(H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l),-285.8):}

The factor of DeltaG values is important in metallurgy. The DeltaG values for the following reactions at 800°C are given as : S_(2)(s) + 2O_(2)(g) to 2SO_(2)(g), DeltaG =-544 kJ 2Zn(s) + S_(2)(s) to 2ZnS(s), DeltaG=-293 kJ 2Zn(s) + O_(2)(g) to 2ZnO(s), DeltaG = -480 kJ Calculate the DeltaG for the reaction: 2ZnS(s) + 3O_(2)(g) to 2ZnO(s) + 2SO_(2)(g)

For the reaction , 2C_(2)H_(6)(g)+7O_(2)(g)rarr4CO_(2)(g)+6H_(2)O(l) , the rate of disappearnce of C_(2)H_(6)(g) :