Question

5. A glass tumbler cracks on heating.
6. Liquids and gases have no linear or superficial expansion.
7. A little space is left in medicine bottles.ty7uuyyujjjiojhgtg​

Answer 1

Answer:

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Answer 2

Answer:

5. When hot liquid is poured into the glass tumbler the surface of the glass which comes into the contact of the hot liquid expands rapidly whereas outer surface which is away from the hot liquid does not expand as quickly hence the thermal stress develops which cracks the glass.

6. Liquids and gases show only cubical expansion, but no linear and superficial expansion because they do not have a definite shape. Different gases have the same rate of expansion for the same rise in temperature, as compared to solids and liquids which show different rates of expansion for the same rise in temperature.

7. Bottles have place for gas . ... As a result solubility of gases decreases. It require some space . If the bottles are fully filled then it may blast due to excessive pressure formed by increased kinetic movement or temperature.

Explanation:

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