Directions
This is a three-question quiz with a total of seven unknowns that must be solved for. After (optionally) entering your name and then beginning the quiz, you will be given a scenario with two unknown values (see below).
Enter the correct mole fractions and flow rates in the light yellow input boxes. Answers should have a precision of two digits after the decimal place (e.g., 2.15 kmol/h). A correct answer is considered within ±0.01 of the solution. After you have entered your answers in the input boxes, press 
to display the correct answers. Then, press 
to proceed to the next question. Once all seven unknowns have been solved for, your score will be displayed. If you entered your name at the beginning of the quiz, your name will be displayed alongside your score so you may screenshot the page and send the image to your instructor. You may attempt the quiz as many times as you like by pressing 
. Each time you re-attempt the quiz, the unknowns to be solved for will be randomized and the flow rates and mole fractions will be randomized (i.e., the quiz will be different each time you attempt it). To see the equations needed to solve each mass balance, press 
.
to display the correct answers. Then, press to proceed to the next question. Once all seven unknowns have been solved for, your score will be displayed. If you entered your name at the beginning of the quiz, your name will be displayed alongside your score so you may screenshot the page and send the image to your instructor. You may attempt the quiz as many times as you like by pressing . Each time you re-attempt the quiz, the unknowns to be solved for will be randomized and the flow rates and mole fractions will be randomized (i.e., the quiz will be different each time you attempt it). To see the equations needed to solve each mass balance, press .