Question

To be classified as a flammable liquid it must have a flash

point of
a) more than 37.8 degrees C
b) less than 50 degrees C
c) less than 37.8 degrees C
d) more than 50 degrees C
e) less than 21 degrees C

Answer 1

A flammable liquid is defined as having a flashpoint of less than 50 degrees Celsius. Given the options, the correct classification for a flammable liquid is option (b) less than 50 degrees C. The flashpoint is the minimum temperature at which a liquid's vapor will ignite.

Step-by-step explanation:

To be classified as a flammable liquid, a substance must have a flashpoint of less than 50 degrees Celsius. Looking at the given options, the correct one would be (b) less than 50 degrees C. Flashpoints are used to characterize the flammability of liquids. They are defined as the lowest temperature at which the vapor above a volatile material will ignite in air when given an ignition source.

For instance, according to the description of waste liquids, any liquid with a flashpoint below 60 °C (which includes the range below 50 °C) is considered a flammable material. Similarly, based on the information provided, we can understand why certain materials are stored below specific temperatures, such as the warning to store at temperatures below 120 °F (48.8 °C). This is to prevent the possibility of reaching or surpassing the flashpoint and causing ignition.