MCQ
The heat of reaction for
$MO \rightarrow M +\frac{1}{2} O _2$ is 50 kcal and
$MO _2 \rightarrow MO +\frac{1}{2} O _2$ is -100 kcal.
The heat of reaction for $M + O _2 \rightarrow MO _2$ is -
  • A
    -50 kcal
  • B
    -150 kcal
  • 50 kcal
  • D
    +150 kcal

Answer

Correct option: C.
50 kcal
C

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