Question

identify the method of thermal energy transfer at work in hot air balloons. explain how thermal energy is transferred in this scenario.

Explanation:

The method of thermal energy transfer in hot air balloons is convection. The flame heats the air near it. This hot air (being less dense) rises, and cooler air from the surroundings moves in to be heated. As the hot air rises inside the balloon envelope, it transfers thermal energy, causing the balloon to become buoyant and rise. Convection involves the movement of fluid (here, air) carrying thermal energy from one place to another.

Answer:

The method of thermal energy transfer in hot air balloons is convection. The flame heats the air; the hot, less - dense air rises (carrying thermal energy), and cooler air moves in to be heated, repeating the cycle to heat the air inside the balloon envelope, making the balloon buoyant.