EASY
8th ICSE
IMPORTANT
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How does the kinetic energy of a molecule in a substance change with a decrease in its temperature?

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Important Questions on Matter

MEDIUM
8th ICSE
IMPORTANT
The state of matter, in which the kinetic energy of the molecules is so small that they cannot overcome the intermolecular force of attraction between them, is :
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8th ICSE
IMPORTANT
In convection currents,
MEDIUM
8th ICSE
IMPORTANT
The intermolecular force of attraction between the molecules _____ with an increase in temperature. (increases/decreases)
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8th ICSE
IMPORTANT
In solids, intermolecular spaces are very _____. (large / small)
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8th ICSE
IMPORTANT

An atom is defined as the smallest unit of matter that has independent existence and carries the physical and chemical properties of the matter.

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8th ICSE
IMPORTANT
The intermolecular force of attraction increases when intermolecular space increases.
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8th ICSE
IMPORTANT
If the molecules in a substance have very large kinetic energies, which can completely overcome the intermolecular force of attraction between them, then the substance is a liquid.
EASY
8th ICSE
IMPORTANT
When a gas is cooled, its molecules lose energy and slow down.