Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about _____________ °C ?
Correct answer: C. -183
- A. -53
- B. -103
- C. -183
- D. -196
Explanation
Oxygen boils at about −183 °C at atmospheric pressure. The value −196 °C belongs approximately to nitrogen, a common confusion in this question.
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