Arrange the following items on the basis of rate of diffusion in ascending order:
Rock, Water, Gas
Diffusion refers to the process by which molecules intermingle as a result of their kinetic energy of random motion. On the basis of rate of diffusion solid< liquid< gas is the correct order. So, it's Rock, Water, Gas. This is due to the fact that in gaseous state particles move freely and have greater space between each other as compared to liquid and solid.