Your stomach is a chemical reactor. When you devour a fast food 99 centsign spec
ID: 478044 • Letter: Y
Question
Your stomach is a chemical reactor. When you devour a fast food 99 centsign special hamburger in about a minute, it acts like an instantaneous input of 325 g of food entering the stomach. In response, the stomach starts producing gastric liquids (acids), which are continuously excreted into the stomach at a rate of 12.0 mL/min as the hamburger is digested. The fluid also leaves the stomach to the small intestine at a flow rate of 12.0 mL/min, so the volume of liquid in the stomach stays constant at 1.15 L. The hamburger digestion rate constant is 1.33 hr^-1 What kind of ideal reactor would you model your stomach as? What fraction of the hamburger's mass will remain undigested in your stomach one hour after you eat the hamburger?Explanation / Answer
(a) What kind of ideal reactor would you model your stomachas?
there is enough mixing in stomach
it would act as a CTSR orcomplete mix reactor
=======================================================
(b) What fraction of the hamburger's mass will remainundigested in you stomach one hour after you eat thehamburger?
Q = 12 mL/min = 0.72 L/hr
V = 1.15 L,
K = 1.33 1/hr,
C0= 325 g / 1.15 L = 282.6 g/L
Ce= 282.6 *e^-(0.72/1.115 +1.33)*1.0
Ce= 39.97èmass = 39.97 * 1.15 = 45.96g
remaining fraction = 45.96/ 325 = 0.14 or 14%
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.