A chemical reactor gives a fractional conversion of only 10% of the expensive limiting reactant in the feed stream. Assuming nothing will improve the reactor’s performance, how would you design a process to make better use of the expensive reactant? What performance characteristics would you need for other process units? (b) A second reactor is available which gives 90% conversion but allows an irreversible, undesirable side reaction with only a 50% selectivity or the desired product versus the undesired product. For some cases, the 1st reactor would be better, while for others the 2nd reactor is a better choice. Explain what performance characteristics of other units would dictate this choice?

Transactions that affect earnings do not necessarily affect cash. identify the effect, if any, that each of the following transactions would have upon cash and net income. the first transaction has been completed as an example. (if an amount reduces the account balance then enter with negative sign preceding the number e.g. -15,000 or parentheses e.g. (15, cash net income (a) purchased $120 of supplies for cash. –$120 $0 (b) recorded an adjustment to record use of $35 of the above supplies. (c) made sales of $1,370, all on account. (d) received $700 from customers in payment of their accounts. (e) purchased equipment for cash, $2,450. (f) recorded depreciation of building for period used, $740. click if you would like to show work for this question: open show work

By which distribution system is more than 90 percent of u.s. coal shipped? a. pipelinesb. trucksc. waterwaysd. railroadse. none of the above

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