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Transcript of Jacques Charles
The volume of a gas increases with the increasing temperature, as long as the pressure on the gas does not change. As with Boyle’s law, the reverse is also true. The volume of a gas shrinks with decreasing temperature.
As a gas is heated, the particles that make up the gas move faster and faster. Because the particles that make up the gas move faster, they strike the walls of their container more often and with more force. This causes the container to expand.
In a hot air balloon, the walls have to expand so instead of increased pressure, the volume increases.
Once the air in a balloon gets hot enough, the net weight of the balloon plus this hot air is less than the weight of an equivalent volume of cold air, and the balloon starts to rise. When the gas in the balloon is allowed to cool, the balloon returns to the ground.
Real world connection
DOB: Nov 12 1746 in Beaugency France
He worked in a finance before aeronautics
He worked with Robert brothers and developed hydrogen balloon in 1783 and became first to ascend in that kind of transportation
Was an inventor as well as teaching at Conservatoire des Arts et Metiers.
DOD: April 7, 1823 in Paris France
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