Modern Chemistry, Lesson 70: Gasoline and Motor Fuels

Duration: 30 min

Creator: Encyclopaedia Britannica Educational Corporation

Description: Explains that a scale called octane number is used to rate the antiknock quality of gasolines. Normal heptane is given a rating of zero and iso-octane is given a rating of 100. Additives, such as tetraethyl lead, raise the octane rating of regular gasolines.

Metadata Source:Catalog of Classroom Teaching Films for Georgia Schools, No. 10 (Georgia Department of Education)