In a closed container the mass of reactants (wood) and products (carbon dioxide, water, ash) remain unchanged; this is the low of mass conservation.
Gas rises in a closed container because it is less dense than the surrounding air.
When particles in a closed container are heated, they gain kinetic energy and move faster. This increased movement causes the particles to collide more frequently and with greater force against the container walls, which leads to an increase in pressure inside the container.
When water is left in an open container, it can evaporate due to exposure to air. In a closed container, the water vapor will eventually reach equilibrium with the liquid water, leading to increased humidity inside the container. If the container is completely sealed, no water vapor can escape, leading to a buildup of humidity over time.
When a liquid is placed in a closed container, molecules with sufficient energy can escape from the liquid and turn into gas. This process is called evaporation.
Yes, evaporation can still occur in a closed container, but the rate of evaporation will eventually slow down because the amount of water vapor in the container will reach an equilibrium with the liquid water. At this point, the rate of condensation will equal the rate of evaporation.
This would be considered an observation. It is a direct result of a specific experiment or test, where the metal is burned in a closed container and the contents remain unchanged. It does not represent a law or a theory, which are more general principles or explanations about the natural world.
That is a law, specifically the law of conservation of mass. This states that matter can neither be created nor destroyed in a chemical change. This was proved in Lavosier's experiment where he determined that the total lass of the products formed by burning were equal to the mass of the matter burned and oxygen consumed.
Since you have specified a closed container, the amount of gas doesn't change, and the volume that it occupies doesn't change. The only thing that is likely to change is the temperature, and changes in temperature will cause corresponding changes in pressure. And if the pressure gets too high, your closed container is going to explode. So avoid overheating.
evaporate
Water can be evaporated from a sealed container.
small container
the particles of gas bouncing into the walls of the container.
They can't live in a closed container because there is no oxygen.
Lowering the temperature will cause a decrease in gas pressure in a closed container.
Gas rises in a closed container because it is less dense than the surrounding air.
They move Freely in the closed container.
in a closed container and then refrigerate.