Heat and temperature are two different terms. Heat is the cause and temperature is the effect. So when the temperature increases then the pressure increases provided the volume remains constant. This is what we call part of Charle's law.
"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 refers to a warmer...
Yes, heated air rises. the hot air molecules have the same mass as the cold air particles, but they are less dense (the "hot molecules" that move more quickly expand into a larger volume, so hot air...
it isn't correct to say it rises or falls. A better way to ask the question is: "Why do hot things (like hot air) rise above cold things (like cold air)?" To answer this question, it is important to...
Generally warmer substances, air for example, rises above cooler. The reason is that the heat causes expansion and the air becomes less dense. The cooler air then falls through the warmer layer,...