Home
Class 11
CHEMISTRY
Calculate the heat of formation of n but...

Calculate the heat of formation of n butane from the following data:
a. `2C_(4)H_(10)(g) +13O_(2)(g) rarr 8CO_(2)(g) +10H_(2)O(l), DeltaH = - 5757.2 kJ`
b. `C(s) +O_(2) (g)rarrCO_(2)(g), DeltaH =- 405.4 kJ`
c. `2H_(2)(g) +O_(2)(g) rarr 2H_(2)O(l), DeltaH =- 572.4 kJ`

A

575.6

B

287.8

C

182

D

57.56

Text Solution

Verified by Experts

The correct Answer is:
B

`Q=(5.8)/(58)xx(5756)/(2)=287.8 " kJ"`
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 the heat of formation of KOH from the following data K_((s)) + H_(2)O + aq rarr KOH_((aq)) + (1)/(2) H_(2(g)) , Delta H = -48.4 K.Cal H_(2(g)) + (1)/(2) O_(2(g)) rarr H_(2)O_((l)) , Delta H = -68.44 K.Cal KOH_((s)) + aq rarr KOH_(aq) , DeltaH = -14.01 K.Cal

C_((s))+O_(2(g))rarr CO_(2(g))+Q is ………………….

Calculate the heat of combustion (in kJ ) of the methane from the following data.(I) C_(graph ite)+2H_(2)(g)toCH_(4)(g)," " DeltaH=-74.8kJ II C_(grap hite)+O_2(g)toCO_2(g)," "DeltaH=-3935kJ III H_(2)(g)+(1)/(2)O_(2)(l)" " Delta=-286.2kJ

Calcutate enthalpy for formation of ethylene form the following data (I) C_((graphtie))+O _(2)(g)toCO_(2)(g), """""Delta=-393.5kJ (II) H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l), """" DeltaH=-286.2kJ (III) C_(2)H_(4)(g)+3O_(2)(g)to2CO_(2)(g)+2H_(2)O(l)"""""DeltaH=-1410.8kJ

Balance the following equation by electron transfer method. NH_(3)(g) + O_(2)(g) rarr NO (g) + H_(2)O(l)

Given C_((s)) + O_(2(g)) rarr CO_(2(g)), Delta H = -395 kJ , S_((g)) + O_(2(g)) rarr SO_(2(g)) , Delta H = -295 kJ , CS_(2(l)) + 3O_(2(g)) rarr CO_(2(g)) + 2SO_(2(g)) , Delta H = -1110 kJ The heat of formation of CS_(2(l)) is

Calculate the heat of formation (DeltaH) of CO from the following data. (I) C_(graph ite)+2H_(2)(g)toCH_(4)(g)," " DeltaH=-94kcal (II) CO(g)+(1)/(2)O_(2)toCO_(2)(g)," "DeltaH=-68kcal