Pdv sentence example

pdv
  • We must be content to point out that it seems that the spiders, the pedipalps, and erit Pdv' stir' After Beck, Trans.
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  • The area BCDdb under the path represents the external work done by the substance in expanding from B to D, which is analytically represented by the integral of pdv taken along the given path.
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  • Since dE=dH - pdv, we have evidently for the variation of the total heat from the second expression (8), dF=d(E + pv) =dH+vdp=Sde - (Odv/de - v)dp .
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  • Observing that F is a function of the co-ordinates expressing the state of the substance, we obtain for the variation of S with pressure at constant temperature, dS/dp (0 const) '=' 2 F/dedp =-0d 2 v/d0 2 (p const) (12) If the heat supplied to a substance which is expanding reversibly and doing external work, pdv, is equal to the external work done, the intrinsic energy, E, remains constant.
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  • In this case the work of expansion, pdv, is expended in the first instance in producing kinetic energy of motion of parts of the gas.
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  • Then let us heat both ice and solution through the infinitesimal temperature range dT to the freezing point T of the solvent, melt the ice by the application of an amount of heat L, which measures its latent heat of fusion, and allow the solvent so formed to enter the solution reversibly through a semi-permeable wall into an engine cylinder, doing an amount of work Pdv.
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  • The available energy A is the work which may be gained from the system by a small reversible isothermal operation with an osmotic cylinder, that is Pdv.
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  • We then have Pdv =ldv+T (Pdv).
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  • The mass of the whole shell will therefore be S f E pdv, and that of the interior part of the liquid (V - SE)po.
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