5. Consider the process where nA mol of gas A initially at 1 bar pressure mix with ng mol of gas B also at 1 bar to form 1 mol of a uniform mixture of A and B at a final total pressure of 1 bar, and all at constant temperature T. Assume that all gases behave ideally. a. Show that the entropy change, AmixS m, for this process is given by AmixSm = -xARIN XA - XBRln XB, where XA and xg are the mole fractions of A and B, respectively.

1) The entropy of vaporization of methanol CH3OH determined at the boiling temperature is equal to 104.6 J mol¹ K-¹. It is in the Data Section of Atkins book. Is it consistent with the Trouton's rule? Calculate the enthalpy of vaporization of methanol at this temperature. Hint: the vaporization temperature can be taken from the Data Section (next page).

The heat of vaporization AH, of benzene (CH) is 44.3 kJ/mol. Calculate the change in entropy AS when 79. g of benzene condenses at 80.1 °C. Be sure your answer contains a unit symbol and the correct number of significant digits. P x10 Save For Later Subi Check 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Cen EPIC MANEN F9 F10 F11 t B 1 P esc alt option Q A F1 N 2 3 29 F2 S X H command ㅁㅁ #3 E F3 D X We *** DOO DOD 54 $ C F4 R 70 F ? % 5 01) V F5 T G MacBook Pro F6 6 B Y 881 & 7 H F7 U N * 00 8 J F8 M 9 K H 0 L command opt

Calculate the change in the entropy of a system when going from a condition of 5 accessible microstates to 30 accessible microstates given that the Boltzman constant is 1.38x10 - 23 J/K. Express your result in scientific notation (e.g. the atoms in a mole are 6.022E23).