The heat energy required to raise the temperature of 20 kg of water from 25 °C to 75 °C is (in calories) ………………

The heat absorbed by the substance depends on

Evaporation of liquid takes place at the ………………..

Water is used in car radiators of engine as coolant because of ………………

The process of escaping of molecules from the surface of a liquid at any temperature is called ……………………

Evaporation is a ……………… process.

Evaporation is a ………….. phenomenon.

The temperature of a system during evaporation

Evaporation takes place at ………………. temperature.

The phase change from liquid to gas that occurs at the surface of liquid at any temperature is called ……………