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An increase in temperature increase the energy content (kinetic energy) in diffusing part times making them to move/diffuse faster.
The smaller the diffusing particles the higher they move father hence faster diffusion.
A higher differences in centration between two regions increases the rate of diffusion.
The rate of transpiration in wind differs from rate in still air because;In still air, the water vapour lost from the plant accumulates in the air surrounding the leaf, thus increasing humidity which reduces saturation deficit between leaf cells and the atmosphere hence reducing transpiration rates.In wind, the water vapour from the plant(shoot) is carried away from the surrounding of the plant increasing the saturation deficit between leaf cells and the surrounding air; thus reduce rates of transpiration.
Water a liquid at room temperature while carbon(iv)oxide a gas because;Water has stronger hydrogen bonds between its molecule unlike carbon(iv)oxide which has weak van dar waal forces.