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What is the spreading out of a substance?
A non-solid. The particles are really spread out in a gas, and less spread-out in a liquid.
How does heat affect the molecules in a substance?
They rapidly vibrate. Yes, they do, but how rapidly depends on the amount of heat (kinetic energy) added to the molecules. If solid, they will eventually melt depending on which solid and what its melting point is. If liquid, they will eventually become a gas or vapor, and a gas will expand indefinitely into the atmosphere if not contained within something. Think of water: ice heats to liquid water which in turn becomes steam (vapor) which goes out into the atmosphere unless it is contained. If the container cannot expand and the water vapor (or any other gas) continues to be heated, eventually the gas will cause the container to explode because the internal pressure will exceed the ability of the container to hold it.
Why do things melt?
their temperature rises above their meting points. This causes the particles to vibrate so fast that that all spread apart, causing a liquid to form.
What is the difference between diffusion and dissolve?
Diffusion is the spread of particles from an area of higher concentration to an area of lower concentration. Diffusion can occur in gas or liquid.Dissolving occurs when one substance, the solvent, supports the particles of another substance, the solute, to form a solution. The two processes are similar.Example:Sugar in the bottom of a cup of coffee will slowly diffuse into the bottom of the cup dissolving as it goes. When we stir the coffee we make the process faster and the dissolving is uniform without a higher concentration at the bottom of the cup.Perfume or petrol (gasoline) in a container in the corner of the room will slowly diffuse out and we can smell it even when we are not next to the container. Again the concentration is higher the closer we are to the container.
Are gas particles packed close together?
No, they are spread out. Gases are less dense than solids and liquids, which is caused by the particles being spread out.
When the particles of a substance move faster they spread out causing the substance to what?
Change states
Why does density decrease as temperature increases?
As temperature increases, the particles in a substance move faster and spread out more, causing the substance to expand and decrease in density.
When thermal energy increases and the particles spread out what does it cause?
When thermal energy increases and particles spread out, it causes an expansion in volume of the substance. This is because the increased thermal energy leads to more kinetic energy in the particles, causing them to move faster and spread out further from each other.
Why does volume increase when temperature increase?
When temperature increases, the kinetic energy of particles in a substance increases, causing them to move faster and spread out. This increased movement results in greater separation between particles, leading to an expansion of the substance and an increase in volume.
When a substance is heated do the particles get larger?
When a substance is heated, the particles do not get larger but they vibrate faster and spread out more, causing the substance to expand. This expansion is due to the increase in kinetic energy of the particles, not their actual size.
Why does heat expand when it rises?
As a substance is heated, its particles gain energy and move faster, causing the substance to expand. When heat energy is added to a substance, the particles spread out and take up more space, leading to expansion. This is why warm air rises, as it is less dense than the cooler air around it.
How does heat affect the space between particles?
When heat is applied to a substance, the particles gain energy and move more rapidly, causing the space between particles to increase. As the particles move faster, they spread out, creating more distance between them. This can lead to expansion or changes in the state of matter, such as melting or boiling.
How and why do substances change volume when their temperature changes?
When the temperature of a substance increases, its particles gain kinetic energy and move faster, causing them to spread out and the substance to expand, increasing its volume. When temperature decreases, particles slow down, move closer, and the substance contracts, leading to a decrease in volume. This is due to the relationship between temperature, particle motion, and the space the particles occupy within a substance.
What happens to particles in a substance whe the sustance's temperature increase?
When the temperature of a substance increases, the particles within the substance gain energy and move more quickly. This increased movement causes the particles to spread out and the substance to expand. Additionally, the increased kinetic energy may lead to changes in the substance's state, such as melting or vaporization.
Increase in volume due to heating?
When a substance is heated, its particles gain energy and move faster, causing them to spread out and increase in volume. This increase in volume is a result of the particles taking up more space as they move more rapidly. It is a common phenomenon observed in gases and liquids when they are heated.
When temperature increases volume will do what?
When temperature increases, the volume of a substance typically increases as well. This is because the particles within the substance have more kinetic energy and move faster, causing them to spread out and take up more space.
What do heat particles do?
there is no such thing as heat particles. Electrons carry heat to and from molecules.
