Is it possible to boil water at room tempareture say `30^(@)C`? If we touch a flask containing water boiling at this temperature, will it be hot?

Boiling point of water at normal atmospheric pressure is

An iron ball at 50^@C is dropped in a mug containing water at 50^@C .The temperature of the mixture will be

Does a body at 20^(@)C radiate in a room, where the room temperature is 30^(@)C ? If yes, why does its temperature not fall further?

A closed bottle containing water at room temperature is taken to the moon and then the lid is opened. The water will ……………… .

On dissolving sugar in water at room temperature solution feels cool to touch. Under which of the following cases dissolution of sugar will be most rapid ?

Can water be boiled without heating ?

A glass contains some water at room temperature 20^(@)C .Refrigerated water is added to it slowly. When the temperature of the glass reaches 10^(@)C, small droplets condense on the outer surface. Calculate the relative humidity in the room. The boiling point of water at a pressure of 17.5mm of mercury is 20^(@)C and at 8.9mm of mercury is 10^(@)C .

In which temperature cocoon is soaked in hot water?