The fire point of an oil is about ________ higher than the flash pointa.5-30oCb.5-40oCc. 5-20oCd.5-10oCClear my choice
Question
The fire point of an oil is about ________ higher than the flash pointa.5-30oCb.5-40oCc. 5-20oCd.5-10oCClear my choice
Solution
The fire point of an oil is typically about 5-10oC higher than the flash point. So, the correct answer is d. 5-10oC.
Here's why: The flash point is the temperature at which the oil produces enough vapor to form an ignitable mixture with air. However, this mixture doesn't burn for a sustained period. The fire point, on the other hand, is the temperature at which the oil continues to burn for at least 5 seconds after ignition. This temperature is slightly higher than the flash point because it requires more heat to sustain combustion.
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