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Hot air balloons are brought down by reducing the air temperature inside the balloon. Which gas law can be used to explain it? Combined Gas Law Ideal Gas Law Boyles' Law Charles' Law
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The gas law that can be used to explain why hot air balloons are brought down by reducing the air temperature inside the balloon is **Charles' Law**.**Charles' Law** states that the volume of a gas is directly proportional to its temperature when pressure is held constant. In the context of a hot air balloon, as the air inside the balloon cools down, its volume decreases. This reduction in volume causes the balloon to become less buoyant and descend.So, the correct answer is:**Charles' Law**