5/14/2017 06:00 PM 80.3/100 G 4/9/2017 10:54 PM 6 Grad e Print Calculator Period

Question

5/14/2017 06:00 PM 80.3/100 G 4/9/2017 10:54 PM 6 Grad e Print Calculator Periodic Table 27 of 28 The vapor pressure, P, of a certain liquid If you were going to graphically determine the enthalpy of was measured at two temperatures, vaporizaton, for this liquid what points would you plot? The data is shown in this table. TOK) P (kPa l Number point To avoid rounding errors, use three 8.8 significant figures in the x values Number NOTE: Keep the pressure units in kPa. significant figures in Point 2 the y values. Determine the rise, run, and slope of the line formed by these points. slope What is the enthalpy of vaporization of this liquid? AH J/ mol O Previous Give up & view solution Check Answer oNet d Ext careers partners privacy policy terms of use

Explanation / Answer

Ans. for part B

Let higher temperature be X kelvin and lower temperature is given as 393K

log P2/P1 = (delta H /2.303*8.314) * (X-393)/393*X

log 3 = 36860/19.147 * (X-393)/393*X

0.000248 = 1/393 - 1/X

0.000248-0.002544 = -1/X

-0.002296 = -1/X

X = 435.5 K

Related Questions

Navigate

• Browse (All)
• Browse 5
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.