Surface Tension
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Why Is A Small Drop Of Liquid Spherical In Shape?
Due to the cohesive forces between the molecules of a liquid, the free surface of a liquid drop always tries to contract to the smallest possible area. As a result…
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Obtain The Relation Between The Vapour Pressure Over A Curved Liquid Surface And That Over A Flat Surface.
Let us consider, a capillary tube is vertically dipped in a liquid. The surface tension of the liquid is T and the density of the liquid is . Now the…
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Calculate The Critical Radius Of A Liquid Drop To Evaporate.
The liquid drop needs latent heat to evaporate. This latent heat of vaporization at a constant temperature is supplied by the surface energy.Let, be the radius of a liquid drop,…
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Calculate The Height Of The Liquid Column Upto Which It Can Be Kept In A Vessel With A Small Hole At The Bottom.
Let us consider a liquid drop which is about to be forced out of the hole of radius has a hemispherical shape, then will be the excess pressure inside the…