0
What else can I help you with?
Why is air needed for hot flame?
Air is needed for a hot flame because oxygen in the air is a key component in combustion. It reacts with the fuel being burned to produce heat and light energy. Without enough air, the fire may not burn as efficiently or at as high a temperature.
What is the purpose of the flame that is lit below a hot air ballon?
That flame is the source of heat for the hot air in the hot air balloon.
Why is a flame always towards up?
lets take the candle as an example: the flame of the candle heats the surrounding air thus the cold air bushes the hot air up and takes its place because the cold air is much denser than the hot air, due to this motion the flame itself goes up with the hot air and so on.
What gas in the air is needed for something to burn?
Oxygen is needed to feed the flame.
Why does a hot air balloon need flame in order to take off?
A hot air balloon needs a flame to heat the air inside the balloon, making it less dense than the surrounding air. This temperature difference creates lift, allowing the balloon to float upwards. Without the flame, the air inside the balloon would cool down and the balloon would descend.
What happened to the flame as you covered the air holes?
The flame will start to weaken and eventually go out as you cover the air holes. This is because the flame needs oxygen to sustain combustion, and by covering the air holes, you are restricting the flow of air needed for the flame to burn.
What fuel is used in hot air balloons?
Propane. This is what makes the flame that heats the air in the balloon.
What happens when a Bunsen burner air hole is half open?
When the air hole is opened completely then the flame would turn blue indicating it is very hot. If you closed it the flame will be yellow indicating that it is not as hot (also called the safety flame). So if you half opened the hole then the flame would be hot but not as hot as the blue flame, due to the air flow mixing with the gas inside.
What was the feature that allowed the Bunsen burner to get a hot flame?
Robert Bunsen added an air hole to it so it could have oxygen as well as gas. when the air hole is open the flame you get is blue and is hotter than when the air hole is closed, which then gives a yellow flame.
Why do bubbles shoot upwards when flame is under it?
hot air rises cold air sinks
Name of instrument that uses a mixture of air and gas to make a hot blue flame?
hot plate
Why is the hot air balloon needed?
Today hot air balloons are only for amusement.
