Muskan Trivedi posted an Question
July 08, 2022 • 10:15 am 30 points
  • IIT JAM
  • Chemistry (CY)

66. standard entropy ofcrystalline carbon monoxide (in j/mol) at 0 k is around (a) 0.03 (b) 2.30 ) zero 5.76 thlae that dasahaaaamnataualaia

66. Standard entropy ofcrystalline carbon monoxide (in J/mol) at 0 K is around (a) 0.03 (b) 2.30 ) Zero 5.76 Thlae that dasahaaaamnataualaia

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    Priyanshu kumar

    According to Third law of thermodynamics, at zero Kelvin the entropy is zero for a perfectly crystalline substance. But CO is not a perfect crystal at zero Kelvin. CO has a very small dipole moment and because of which it can crystallise as CO:CO:CO instead of CO:OC:CO. Thus there are two different ways in which CO stays in crystal lattice. S = k ln 2 S = nR ln 2 S/n = R ln 2 = 8.314 * 0.693 S/n = 5.76 J/mol/K

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