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Expansion means increase in the volume. When the substances are heated the
K.e of the molecules is increased to a certain level that they exerts pressure on each other and collide with themselves. there negligible I.M.F begin to decrease more further and in this the molecules become widely seperated from eachothe hence, the substance is expanded.
When substances are heated, their molecules gain energy and start moving faster. This increased movement causes the molecules to spread apart, leading to an increase in volume, or expansion. The expansion occurs because the increased thermal energy disrupts the intermolecular forces holding the molecules together, allowing them to move more freely.
This happens because heat is actually the vibration of atoms or molecules. The hotter a substance is the more violently the atoms move and therefore the larger the space they take up - as they are taking up more room the whole solid object made from them has to get bigger - it expands.
when substance heated,their intermolecular bonding is break at required temperature,there for molecules are free to move;thus substances are expand when heated.
the substance expands when heated because the particles that make up the substance is trying to get out and escape the heat.
the particle vibrated more rapidly causing the object to expand
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What happens to most substances when they are heated?
When substances are heated, typically their molecules gain energy and begin to move more rapidly. This increased movement can cause the substance to expand, change phase (from solid to liquid or gas), or even chemically react to form new substances. The specific changes depend on the substance's properties.
What happens to the density of solids liquids and gases when they are heated?
Generally, the density of solids, liquids, and gases decreases as they are heated. When heated, the particles in these substances gain energy and move more, causing the substance to expand, which leads to a decrease in density.
When most substances are heated they....?
They expand
What are substances that expand and contract called?
Materials that expand and contract in response to changes in temperature are typically referred to as thermal expansion materials. These materials expand when heated and contract when cooled, which can be useful in various applications such as in thermostats, bimetallic strips, and expansion joints.
Do most solids expand when cooled?
No, most solids contract when cooled, as the lower temperature causes the atoms or molecules to move less, leading to a decrease in volume. However, there are exceptions, such as water, which expands when cooled below 4°C before turning into ice.
What expands when its heated?
Most substances expand when heated.
What do substances do when heated because of the molecules?
they expand
What do Metals and other substances do when heated?
materials usually expand when heated.
What expands when it is heated?
When heated, most substances expand due to the increase in kinetic energy of their atoms or molecules. This leads to an increase in the average distance between the particles, causing the substance to expand.
Why substances often expand when they are heated?
because the particles
What do most substances like the liquid in a thermometer do when they are heated?
expand
What happens to a solid when is heated?
A substance in the solid phase will typically expand when heated. Most substances when heated sufficiently will melt into a liquid, assuming that they do not combust or sublimate.
What is it called when different substances expand by different amounts when heated?
This characteristic is known as thermal expansion. Different substances have different coefficients of thermal expansion, which determine how much they expand when heated and contract when cooled.
What happens to most substances when they are heated?
When substances are heated, typically their molecules gain energy and begin to move more rapidly. This increased movement can cause the substance to expand, change phase (from solid to liquid or gas), or even chemically react to form new substances. The specific changes depend on the substance's properties.
What property of water makes it different from other substances?
It contracts when heated from 0 deg C to 4 deg C. Other substance expand when heated.
Oil expand or contract when heated?
Oil does expand when heated and contracts when cooled.
Which substance shrinks on heating?
Most substances expand when heated, but water is an exception. Water contracts when heated from 0°C to 4°C before expanding as it heats up further.
