1)The assignment in this slide has to do with mass balances
  I use blue colour to indicate streams and equipment

2) You have to verify mole fractions as mentioned in this slide

3)The third assignment has to do with the Separator
  Recall that we mentioned that it could be used to mix streams 
  Remove the mixer and mixer-out and try it out
  See if you get the same answers

4)In the next assignment, you will do the separation at a higher temperature 
  Click Separator
  Select the Override Sep. Temperature check-box
  In the resulting field, change the value to 100
  Bring Energy stream from Object Palette to the flowsheet
  Connect this stream to the Energy Stream of the Separator
  Simulate and analyse your results