BE PROMPT
A. Fill in the blanks.
1. When heat is supplied to matter, the
of its molecules increases and they start
vibrating vigorously.
2. Hard solids have hou
melting point while soft solids have less
liss_melting point.
3. No medium is required to transfer heat
by the process of radiation
4. A cold spoon dipped in a cup of hot milk transfers heat to its other end by the process of
5.
clothes absorb more heat than
clothes.
6. In
heat is transmitted mainly by convection.
7. Handles of frying pans are made of
conductors of heat.
8. Transfer of heat by
is faster than conduction.
9. During the night
blows from land to sea.
10. The sun emits more
than an electric lamp because the
the sun is very high.
11. The heat which comes out of the hot object is called
heat.
12. Cooling coils in refrigerators are made of
to conduct away the heat.
of
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Answer:
By the end of this section, you will be able to:
Define and describe the bonding and properties of ionic and molecular metallic and covalent network crystalline solids
Describe the main types of crystalline solids: ionic solids, metallic solids, covalent network solids, and molecular solids
Explain the ways in which crystal defects can occur in a solid
When most liquids are cooled, they eventually freeze and form crystalline solids, solids in which the atoms, ions, or molecules are
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