why is steam hotter than boiling water?

Answer 1

Steam is the gaseous state of water.
As there is a change in physical phase involved hence there is come latent heat involved too.

What it means is, a given mass of boiling water (100 degrees Centigrade, at 1atmosphere of pressure) needs a additional energy to change its phase in to steam, though the temperature of the steam generated would be 100 degrees Centigrade only.

This additional energy (or heat) is stored in the molecules of the water as kinetic energy, and not manifested as the temperature of the water/steam, hence steam is said to be hotter than boiling water as it has more energy than boiling water at the same temperature.

Answer 2

The temperature of steam is higher than boiling water.
You see:In physical chemistry, and in engineering, steam refers to vaporized water. It is a pure, completely invisible gas Pure steam (unmixed with air, but in equilibrium with water-liquid) has a temperature of around 100 degrees Celsius at standard atmospheric pressure, and occupies about 1,600 times the volume of liquid water (steam can of course be much hotter than the boiling point of water; such steam is usually called superheated steam). In the atmosphere, the partial pressure of water is much lower than 1 atm, therefore gaseous water can exist at temperatures much lower than 100 C (see water vapor and humidity).

In common speech, steam most often refers to the white mist that condenses above boiling water as the hot vapor ("steam" in the first sense) mixes with the cooler air. This mist is made of tiny droplets of liquid water, not gaseous water, so it is no longer technically steam.

Hope this helps.

Answer 3

Water boils at 100(degree)centigrade i.e it is its final temperature,but steam is produced or formed at 100(degree)centigrade i mean it is its initial temperature not final

Answer 4

boilling water means 100c but steam means more than its

Answer 5

higher latent heat. conversion of phase of water