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"`
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
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
NARENDRA AWASTHI-THERMODYNAMICS-Level 3 - Match The Column