Fire Behavior and Combustion

1. Our textbook explains that hot air rises and light objects float. The authors gave this as an example of buoyancy. From the picture below explain the buoyancy of the smoke at the molecular level. Describe the buoyancy starting at the very tip of the flames rolling from the window. Is the smoke laminar or turbulent? Why, or why not?

Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

2. Describe the differences between physical change and chemical change in a material. Use examples related to the fire service to illustrate physical change and chemical change. 

Your response must be at least 300 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.