Question

1. fill in the blank.

1. The airference between the freezing point and the boiling point of water in the Kelvin
scole is...... (100 equal parts/273 equal parts).

2. The minimum temperature at which a substance catches fire and starts burning is
known as its........ (inflammable temperature/ignition temperature).

3. The change of state from a liquid into a vapour at a temperature below the boiling
point is......
(evaporation/condensation).

4. Boling and evaporation are examples of ......... (vaporization/liquefaction).

5. Freezing involves.......
(absorption of energy/release of energy).

6. Generally solids.......
(expand/contract) on cooling and.......... (expand/ contract) on heating.

7. Moth boils and camphor are materials that undergo........
(sublimation/vaporization)

8. Derent types of solids and liquids expand by........ (same/different) amounts when given the same amount of heat.

9. Good absorbers are
(bad/good) emitters of radiant heat.




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Answer 1

Answer:

1. 100 equal part

2.ignition

3.condesation

4.licuefaction

5.absorstion of energy

6.contrat/expand

7.vaporization

8.different

9.good

Answer 2

Answer:

1. 100 equal part

2.ignition

3.condesation

4.licuefaction

5.absorstion of energy

6.contrat/expand

7.vaporization

8.different

9.good