Pour point and freezing point is equal for__________________?
Correct answer: C. Water
- A. Petrol
- B. Diesel
- C. Water
- D. Crude petroleum
Explanation
For water, a pure substance, the freezing point and pour point are effectively the same because it solidifies at a definite temperature. Petroleum products contain mixtures, so they usually have a pour-point range distinct from a true freezing point.
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