How can the speed of solvent molecules be slowed down?

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Why doesn't heat added to water make the tempature rise above 100c

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water