## So that's why I get the wrong answerby David (no login)Still it's only about 10% out. I should have copy and pasted a real program like the one below to calculate the entropy of fluorine gas. Anyway my original query is why exactly would you need CONSTANT t = 298.15 'standard temp h = 6.626E-34 'planck's const k = 1.3805E-23 'boltzmann's const na = 6.022E+23 'avagadros' const pi = 3.141593 u = 1.66054E-27 'atomic mass unit r = 8.314 ' gas constant V0 = .0248 'molar volume c = 2.998E+08 'speed of light 'mass, bond length of F2 m = 19!: bl = 1.4178E-10 lam = h / (SQR(2 * pi * 2 * m * u * k * t)) qt = (V0 / (na * lam * lam * lam)) s2 = r * LOG(qt) i = m * bl * bl / 2 b = h / (8 * pi * pi * i * u) sm = 2! qr = (k * t) / (sm * h * b) s3 = r * LOG(qr) PRINT "molar entropy of F2 = "; 3.5 * r + s2 + s3; " J/K" Posted on Jun 24, 2011, 7:02 AMRespond to this message Return to Index |

Response Title | Author and Date |

* THATS THE REASON! You CAN FORGET THEM silly! | Clippy on Jun 24 |

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