During Which Change Of State Would The Volume Of A Substance Increase The Most?
Physical changes
Concrete changes such every bit state change and dissolving are reversible, and there is no change in total mass when they happen. Flowing and diffusion happens in liquids and gases, but not in solids.
Change of state
Substances can alter state, commonly when they are heated or cooled. For example, liquid h2o turns into steam when it is heated enough, and it turns into ice when it is cooled enough. State changes are reversible – ice tin can be melted and then frozen again. No new elements or compounds are formed.
The closeness, arrangement and motion of the particles in a substance change when information technology changes land.
Materials are a shop of internal free energy , due to the motion of particles and the chemic bonds between them.
When a substance is heated, its internal energy increases:
- the movement of its particles increases
- bonds between particles break when a substance melts or evaporates, or sublimes to form a gas from a solid
When a substance is cooled, its internal energy decreases:
- the movement of its particles decreases
- bonds betwixt particles form when a substance condenses or freezes, or sublimes to course a solid from a gas
Conservation of mass
The particles in a substance stay the aforementioned when it changes land - merely their closeness, system or motion change. This means that:
- the chemic nature of the substance itself stays the aforementioned
- the mass of the substance stays the same
For instance, ten g of h2o boils to form x thousand of steam, or freezes to grade ten 1000 of ice. This is called conservation of mass .
Source: https://www.bbc.co.uk/bitesize/guides/zc9q7ty/revision/4
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