1.

Fill in the blanks : (a) Boiling occurs at ___ (b) Evaporation takes place at ___ (c) The molecules of liquid ___ heat from surroundings in evaporation. (d) Heat is ___ during boiling. (e) Cooling is produced in ___ (f) A longer rod expands ___ than a shorter rod on being heated to the same temperature. (g) Liquids expand ___ than the solids. (h) Gases expand ___ than the liquids. (i) Alcohol expands ___ than water. (j) Iron expands ___ than copper.

Answer»

Fill in the blanks :

(a) Boiling occurs at ___

(b) Evaporation takes place at ___

(c) The molecules of liquid ___ heat from surroundings in evaporation.

(d) Heat is ___ during boiling.

(e) Cooling is produced in ___

(f) A longer rod expands ___ than a shorter rod on being heated to the same temperature.

(g) Liquids expand ___ than the solids.

(h) Gases expand ___ than the liquids.

(i) Alcohol expands ___ than water.

(j) Iron expands ___ than copper.



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