It moves Faster.
evaporate
The magnitude of the vibration of its molecules gets increased.
they turn into gas
vaporizes
When a noble gas is heated, its molecules move faster (this is the same as saying that the gas heats up).
The speed of the gas particles will increase as they are heated. That is why the pressure in a container increases. The particles are hitting the walls of the container with more force as they are heated.
it expands and/or its pressure rises, depending on conditions.
they tend to vibrate
The pressure is higher.
Decomposed to produce PbO and oxygen gas!
The average particle speed increases.
The main type of thermal energy transfer that happens when a gas is heated is convection. In convection, the heated gas molecules become less dense and rise, while cooler gas molecules sink, creating a circular motion that transfers heat throughout the gas.