Question

Explain how liquids get heated, on the basis of change in density with the rise in temperature

Answer 1

When we heat a liquid in a beaker the liquid close to the bottom of beaker (closer to the source of heat) expands and hence its density decreases This lighter water (hot) rise up in the beaker allowing the heavy, dense cold water to take its place towards the base of the beaker causing convection current This current ultimately heats the entire liquid