When heated from 0C to 100C volume of a given mass of water will :
(1) Increase gradually
(2) Decrease gradually
(3) Increase and then will decrease
(4) Decrease and then will increase
Answer: (4) When heated from 0C to 100 C volume of a given mass of water will first decrease and then increase. If the word “ice” or “solid” is not mentioned, the word “water” means liquid water. Water vapour can be produced from the evaporation or boiling of liquid water. So the volume first decreases and then increases again when water droplets form from the vapours due to the stoppage of heat.