The following table gives the vapor pressure of hexafluorobenzene (C₆F₆) as a function of temperature: (a) By plotting these data in a suitable fashion, determine whether the Clausius–Clapeyron equation (Equation 11.1) is obeyed. If it is obeyed, use your plot to determine ∆H_vap for C₆F₆.

Video transcript

Hi everyone. So here we have the value of favorite pressure of toy Elaine as a function of temperature shown in the following table. Were asked to determine if this data a basic classes copper own equation and if yes, calculate the entropy of vaporization for Toya lane. Recall that the classes chaperone equation is Ln. Of the second vapor pressure. About a friend vapor pressure equal to negative entropy of vaporization. Bye bye. R gas constant times one by a second temperature -1 by the first temperature. So we need to graph L N hmm versus one. So we need to first make our chart. Have L and P Left out in 31.2. Ln 51. End of 80.9. Ln 124. Oh N. And Ln 395. We get 3. 3. 1826. 4.39 22. 4. 0-8 to 5. 5. 5.97 8886. And then for one of our batik We have one by by 300 What? About about 310. What about about 320. Want to buy about one. What? About about 350 one. About about 360. You get 0. 0.0032 - six. 0.00 0. 303 0. 0. 0.00 778. Can I grab this? The graph is going to be linear. It's gonna look like this so the data obeys the Closius chaperon equation. It was slow of this graph is gonna be equal to the negative of the entropy of vaporization. What about art? The interview vaporization equals negative M times R. And M was negative. 4568 0.6 from the graph. In the unit of slope mm It was the delta Y divided by delta X. This gives us one over K. Two the naked one power. Which gives us K. For the entropy of vaporization we get negative - 0.6 oven Times 8. promote, I'm Calvin. We get 37, 183. jules promote the entropy of vaporization. People's 38 promote. Thanks for watching my video and I hope it was helpful