DOES EVAPORATION TAKES PLACE DURING BOILING OF WATER?

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Solution

$Dear user, Evaporation and boiling are two different forms of vapourization . Evaporation occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance . While boiling occurs when the bubbles of saturated vapor are formed in the liquid phase . Boiling occurs only when some conditions are followed while for evaporation to take place, there is no particular condition . Thus, evaporation takes place during boiling of water .$

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Similar questions

Below the boiling point of a liquid evaporation takes place. Then when the liquid is being heated to vaporise it, before reaching its boiling point does the liquid not evaporate?

Q. Evaporation only takes place at boiling point of a liquid.

Write true or false for each statement :

(a) The temperature of a substance remains unaffected during its change of state.

(b) Ice melts at $100^{\circ} C .$

(d) Evaporation of a liquid causes cooling.

(e) Water evaporates only at $100^{\circ} C .$

(f) Boiling takes place over the entire mass of the liquid.

(g) Evaporation takes place over the entire mass of the liqid.

(h) The process of a gas converting directly into solid is called vaporization.

(i) At high altitudes, water boils above $100^{\circ} C .$

(j) The melting point of ice is $0^{\circ} C$

Question 5

(i) Evaporation occurs from the …………… of the water.

(ii) At sea-level, pure water boils at ……………

(iii) Condensation of steam takes place at ……………

Fill in the blanks :

(a) Boiling occurs at ___

(b) Evaporation takes place at ___

(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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