Q1. a) In an adult, the aorta’s radius is normally 1.5 cm and blood moves through it at the average velocity of 30 cm/s. If a typical capillary vein has a constant radius of 5 x10-6m andblood passes through them with a velocity of 0.1 cm/s, approximately how many capillaries areneeded in a body? b) Benzene at 1 atm and 80⁰C enters the pipe system given in the below figure, with a Reynoldsnumber of 130000 and leaves the system at 60⁰C. Assuming that diameters of the pipes at theexit are equal to each other, calculate the Reynolds number on one of the exit pipes (density ofliquid benzene at 80⁰ C= 813 kg/m3and at 60⁰C = 835 kg/m3).
Q1. a) In an adult, the aorta’s radius is normally 1.5 cm and blood moves through it at the average velocity of 30 cm/s. If a typical capillary vein has a constant radius of 5 x10-6m andblood passes through them with a velocity of 0.1 cm/s, approximately how many capillaries areneeded in a body? b) Benzene at 1 atm and 80⁰C enters the pipe system given in the below figure, with a Reynoldsnumber of 130000 and leaves the system at 60⁰C. Assuming that diameters of the pipes at theexit are equal to each other, calculate the Reynolds number on one of the exit pipes (density ofliquid benzene at 80⁰ C= 813 kg/m3and at 60⁰C = 835 kg/m3).
Chapter4: The Second Law Of Thermodynamics
Section: Chapter Questions
Problem 1CQ: State an example of a process that occurs in nature that is as close to reversible as it can be.
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Q1. a) In an adult, the aorta’s radius is normally 1.5 cm and blood moves through it at the average velocity of 30 cm/s. If a typical capillary vein has a constant radius of 5 x10-6m andblood passes through them with a velocity of 0.1 cm/s, approximately how many capillaries areneeded in a body?
b) Benzene at 1 atm and 80⁰C enters the pipe system given in the below figure, with a Reynoldsnumber of 130000 and leaves the system at 60⁰C. Assuming that diameters of the pipes at theexit are equal to each other, calculate the Reynolds number on one of the exit pipes (density ofliquid benzene at 80⁰ C= 813 kg/m3and at 60⁰C = 835 kg/m3).
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