Stockings inc. is making nylon 6,6 in 8 hour shifts. one batch is produced per shift using equimolar amounts of the reactants with a conversion of 99%. after each run the product is extruded and chopped into pellets.

a. what is the number average molecular weight?

b. the afternoon shift operator dumped in too much adipic acid. from her records you calculate that the molar ratio was 2% excess adipic acid. assuming the batch went to the usual conversion what was mn ?

c. the night shift operator weighed everything correctly but fell asleep and let the reaction run too long to 99.5% conversion. what is mn for this batch?

d. how should the engineer mix these batches to come within ±10% of the usual specification of mn ? what will be mw ?

e. what would happen to mn and mw if the mixture is heated?

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

assuming that your periodic table has eighteen columns, you should highlight   the four elements in the third column from the left of the table.

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the have energy higher than those in the orbital while lower than those of the orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the orbital is therefore filled right after orbitals and before orbitals.  

potassium has electron configuration and calcium . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the and should be highlighted as well.

the correct answer would be b) volume versus temperature, because they are also directly proportional.