Name the process associated with the following:
(a) Dry ice is kept at room temperature and at one atmospheric pressure.
(b) A potassium permanganate crystal is in a beaker and water is poured into the beaker with
stirring.
(c) An acetone bottle is left open and the bottle becomes empty.
(d) Milk is churned to separate cream from it.
(e) Settling of sand when a mixture of sand and water is left undisturbed for some time.
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Centrifugation is a process which involves the use of the centrifugal force for the sedimentation of heterogeneous mixtures with a centrifuge for churning milk to separate cream from it. The process is used to separate two immiscible liquids.
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setting of sand when a mixture of sand and water is left undisturbed for some time
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(a) The process is sublimation because when dry ice is kept at room temperature at one atmospheric pressure, it sublimes leaving no residue. (b) This process is diffusion because in diffusion, mixing of one substance into another substance goes on until a uniform mixture is formed
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Since acetone vaporizes at room temperature, when a acetone bottle is left open the acetone would vaporize and mix with air, thus this is the process of vaporization
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