Question

Why does sugar dissolve faster in hot water than in cold water?

A.The water molecules collide with the sugar more often at high temperatures.

B.The sugar will have more surface area at high temperatures.

C.The sugar will have less surface area at high temperatures.

D.The water molecules collide with the sugar less often at high temperatures.

Answer 1

Answer:

Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster. As they move faster, they come into contact with the sugar more often, causing it to dissolve faster.

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