Why Does Heat Rise?


Heat in itself does not rise as there is no matter in heat although it causes air to rise. Heated air is generally less dense than cold air causing it to rise above the cold air which contains moisture. Heat may be transferred from one object to another through the processes of radiation, conduction and convection.
Q&A Related to "Why Does Heat Rise?"
"Heat" itself does not rise; heat transfers [moves] by conduction, radiation, and convection [convection is the one that best relates to what your question asks] Your question
Most substances have a decrease in density as the temperature of that substance rises. This is
Bread is the staff of life, and baking it yourself imparts a sense of self-sufficiency unlike any other baking activity. Successful bread baking engages a fair measure of chemistry,
Heat does not rise, Hot gasses and liquids rise. This is because they expand when heated. They weigh the same, but occupy more volume. This makes lighter than cooler liquids or gases
2 Additional Answers
Heat (actually hot air) definitely does rise. You can prove that by going upstairs in a house with no air conditioning in the summer! The hot air rises because it is lighter than cold air. You can find more information here: http://ezinearticles.com/?Why-Does-Cold-Air-Fall-and-Warm-Air-Rise?&id=302338
Heated air rises because it is less dense than cold air. Cold air contains moisture so it falls as heated air rises. We can be grateful that it does or hot air balloons couldn't get off of the ground. You can find more information here: http://www.pa.msu.edu/sciencet/ask_st/042496.html
Explore this Topic
Hot water rises because it is less dense as compared to cold water. Heating the water increases its temperature but decreases its density, the less dense hot water ...
Air tends to cool in temperature when it rises in the atmosphere, but it does not lose any of the heat it had. This is due to the expansion of the gas that accompanies ...
Your Central Heating is not working because either the gas, electrical or water supplies to the appliance are not turned on. There could be an overheat, which ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com