Given that C + O₂ → CO₂ ; ΔH⁰ = −a kJ. 2CO + O₂ → 2CO₂ ; ΔH⁰ = −b kJ The heat of formation of CO is
A
b − 2a
B
2a − b
C
$\frac{b−2a}{2}$
D
2a − b

Question

Given that C + O₂ → CO₂ ; ΔH⁰ = −a kJ. 2CO + O₂ → 2CO₂ ; ΔH⁰ = −b kJ The heat of formation of CO is

Accepted Answer

$\frac{b−2a}{2}$

Answer

b − 2a

Answer

2a − b

Answer

2a − b

AIIMS 2001 Chemistry Hess's Law MCQ Question