So, Thé ÃnSwer is -- The results are in very good agreement with the experimental phase diagrams for homologous series of liquid crystals, and for the first time provide the explanation for the well knowneven‐odd effect in isotropic‐nematic transition temperatures.
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The explanation of the odd even effect in liquid crystals is that the melting points, the nematic-isotropic transition temperatures, and the entropy changes associated with the nematic–isotropic transition showed a remarkable odd–even effect as the length of the spacers was varied, in which the even members exhibited higher values.
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According to him, nitrogen is a harmless gas that is cooled to such a low temperature that it turns into liquid form. Liquid nitrogen is incredibly cold and therefore, proper safety measures need to be taken while handling it as it can cause frostbite and cryogenic burns just like the effects of steam or hot oil.
The fact that the shape of the water column has no influence on the water pressure can also be shown by means of a equilibrium of forces. The water in the funnel-shaped vessel has a greater mass and thus a greater weight, but part of the weight is compensated by the sloping vessel walls
because the solids have more molecular force and can't be breaked easyly at low temperatures but the liquid or gaseous state can so they are effective
Cooling effect of liquids , increase in concentration of liquids
Gas is more effective as it can flow easily.
The fact that the shape of the water column has no influence on the water pressure can also be shown by means of a equilibrium of forces. The water in the funnel-shaped vessel has a greater mass and thus a greater weight, but part of the weight is compensated by the sloping vessel walls.
The lower the liquidity ratio, the greater the chance the company is, or may soon be, suffering financial difficulty. Still, a high liquidity rate is not necessarily a good thing. A very high value resulting from the liquidity ratio may be a sign the company is overly focused on liquidity, which can be detrimental to the effective use of capital and expansion of the business. A company may have a very impressive-looking liquidity ratio but precisely because of its high liquidity level, it may present an unfavorable picture to analysts and investors who then consider other measures of a company's performance such as the profitability ratios of return on capital employed (ROCE) or return on equity (ROE). ROCE is a measurement of company performance in regard to how efficient a company is at making use of available capital to generate maximum profits. It does this through a formula that calculates capital used in relation to net profit generated.
suppose the edge length of the unit cell = a
radius of the sphere = r
then,since the sphere are each other along the edge,therefore a = 2r
now there are 8 spheres at the corners of the cube & each sphere at the corner is shared by 8 unit cells & the contribution per unit cell is 1/8 so that
number of spheres per unit cell is 8 x 1/8 = 1
volume of sphere =4/3πr3 & volume of cube = a3 = (2r)3 = 8r3
now packing efficiency = (volume of one sphere / total volume of cubic unit cell) x 100
(4/3 πr3 / 8r3) x 100 = 52.4%
therefore the volume occupied in simple cubic arrangement = 52.4%
(ii) body centered cubic:
let us suppose the edge leght = a & radius of each sphere = r then there are 8 spheres at the corners & 1 in the body of unit cell
therefore number of spheres per unit cell = (8 x1/8) + 1 = 2
now volume of unit cell = a3 = (4r / √3)3
and volume of a sphere = 4 / 3πr3
total volume of two spheres = 2 x 4/3πr3
packing efficiency = (volume of two spheres in unit cell/total volume of unit cell ) x 100
= (2 x 4/3πr3 / (4r/√3)3 ) x 100 = 68%