2011 · Q24
Steam at 100°C is more effective in heating than water at the same temperature because
general-sciencephysics-heat
- Asteam is in the gaseous state and water is in the liquid state
- Bsteam has an additional heat known as 'latent heat of vaporization'
- Cwater has hydrogen bonds but steam does not
- Dtransfer of heat from steam is easier than water
Explanation
Steam at 100°C carries the latent heat of vaporization in addition to sensible heat, so it releases more heat on condensation.