Question

A hot air balloon is able to fly due to which type of heat transfer?

Answer 1

A hot air balloon operates primarily through convection, which is a type of heat transfer. In a hot air balloon, the air inside the envelope is heated using a burner. As the air inside the balloon becomes warmer, it becomes less dense than the cooler air outside. This difference in density causes the heated air to rise, and as a result, the balloon ascends. The process involves both the heating of the air (conduction from the heat source to the air) and the movement of the warmer air upwards (convection). However, the primary reason the balloon rises is due to the principles of convection and buoyancy.