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For the formula nCln(Tf/Ti), if we were to calculate entropy change for a liquid or solid state substance, do we plug in the heat capacity for that substance in liquid/solid state? I thought Cv or Cp is only used for gases.
melissa carey 1f wrote:Also, when do we need to include n, the number of moles, as I see it omitted in some forms of the equations? Thanks!
You pretty much always include them for entropy calculations. Because the units have to cancel out to leave you with J/K.
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