Question

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

Answer 1

Correct Answer - B
`Q=(5.8)/(58)xx(5756)/(2)=287.8 " kJ"`