Question

Drop a crystal of copper sulphate or potassium permanganate into a glass of hot water and another containing cold water. do not stir it the solution allow the crystal to settle down at the bottom

Answer 1

The crystals in hot water will dissolve soon than in beaker of cold water. Because in hot water beaker, the crystals will absorb the heat energy and starts dissolving in water sooner than another beaker cause the kinetic enegy of crystals will increase making it replace and moving here and there thus they will get dissolved....