Question 397 Deck General

The correct answer is C) -10°Fahrenheit. The flash point of a flammable liquid is the lowest temperature at which the liquid gives off vapor in sufficient concentration to form an ignitable mixture with air near the surface of the liquid. For iso-Hexane, the flash point is -10°Fahrenheit. The other options are incorrect because: A) 20°Centigrade is equivalent to 68°Fahrenheit, which is too high for the flash point of iso-Hexane; B) 68°Fahrenheit is also too high; and D) 152°Centigrade is equivalent to 305.6°Fahrenheit, which is significantly higher than the actual flash point.