Changes in Tutorial 1. Numbers in brackets are frames.

• [3.3]
  -- In the first paragraph, change 0.35 to 0.350 and change 2 to 2.0.
  -- On the last line, change 3.5 to 0.350 (3 occurrences), change 2 to 2.0 (4 occurrences), and 3 to 0.350 (last bullet).
  -- In the equation that comes up when any of the last buttons are pushed, change 2 to 2.0 and 3.5 to 0.350.

Changes in Tutorial 3. Numbers in brackets are frames.

• [5.1] In the list of variables given in response to the correct answer for the "Number of Unknown Variables," the variable n₅ should be included and n₉ should be omitted.

Changes in Tutorial 4. Numbers in brackets are frames.

• [2.2] In the list of variables given at the upper left when "Show Flowchart" is clicked, the units of (1-x_S3) and x_S3 should be mol ___/mol (not mol/s)

Changes in Tutorial 5. Numbers in brackets are frames.

• [5.1] There are three boxes in which the right-hand sides of material balance equations are to be inserted. The second and third boxes should be labeled "Benzene balance" and "Toluene balance" instead of vice versa.

• [6.1] When you click on Q on the flow chart, the equation in the window that appears should read Q = &DeltaH (kJ/s) [not Q = Q(kJ/s)]

• [7.1] In the E-Z Solve window that comes up when the "Go to E-Z Solve" button is clicked, 2 lines below the expressions for the fractions vaporized, "Entalpies" should be replaced with "Enthalpies"

• [8.2] Line 7 of the "Answer" dialog box should begin with "contains 21.6% benzene" (not 62.2%)

• [4.1] Change 1.75 atm to 5.00 atm in "Specifications" box

• [4.2]
  -- Change 1.75 atm to 5.00 atm in "Specifications" box
  -- Change 3rd number on Line 5 of main window from 1.75 to 5.00
  -- On last line of main window, change 1.75 to 5.00

• [4.3]
  -- In last equation in box at upper left, change 1.75 to 5.00
  -- In E-Z Solve window that comes up when "Go to E-Z Solve" is clicked, change 1.75 to 5.00

• [5.1]
  -- In upper product stream of flow chart, change 933 L to 327 L and change 1.75 atm to 5.00 atm
  -- In lower product stream of flow chart, change 1.75 atm to 5.00 atm

• [5.2] Same changes as for [5.1]

• [5.3] Same changes as for [5.1]

• [6.1] In upper product stream of flow chart, make range of pressure box 3.50 atm to 6.50 atm. (It currently is 1 atm to 3 atm.) The pressure shown in the lower product stream labeling should still track the one for the upper stream.

Physical Property Database

• The heat capacity formulas for ethyl alcohol (ethanol) and ethylene were programmed incorrectly, so enthalpy changes calculated for these substances are wrong.