Question

Give reasons for the following - a.ice floats over water b. gaseous have highest rate of diffusion
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Answer 1

Answer:

a}..Ice floats because it is 9% less dense than water. In other words, ice takes 9% more space than water, so one litre of ice is less than one litre of water. Therefore, water is heavier than ice, the ice remains or sets in its place, which causes it to float on the water..

b} Gaseous particles tend to undergo diffusion because they have kinetic energy. Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy. ... Graham's Law states that the effusion rate of a gas is inversely proportional to the square root of the mass of its particles.

Explanation:

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