To distinguishes to have cold water

问题描述:

To distinguishes to have cold water
and in abundantly the hot water two cups joins drop of ink respectively,and mixes separately.Which proliferation quick?Why?
向分别盛有冷水和热水的两个杯子里各加入一滴墨水,并分别搅动.哪个扩散的快?为什么?

热水.
因为温度会加快分子的运动.