Q73 of 160 Page 38

During summer days, water kept in an earthen pot(pitcher) becomes cool because of the phenomenon of:

Evaporation is the phenomenon which is responsible for cooling of pitcher.

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71

Which one of the following set of phenomena would increase on raising the temperature?

 72

Which of the following represent the suitable condition for the liquefaction of gases?

 74

On converting 25°C, 38°C and 66°C to Kelvin scale, the correct sequence of temperatures will be:

 75

The conversion of a solid into vapours without passing through the liquid state is called: