View the step-by-step solution to:

# 20092010 Chapter 3 Nonequilibrium Kinetic Theory and Transport Phenomena of Gas Home Work 5: 1. Water flows through a fire hose of diameter 6.35cm at...

ç（888kg/m3

2009 2010 春 《热学》习题 邢玉梅 2010 05 02 Chapter 3 Non equilibrium Kinetic Theory and Transport Phenomena of Gas Home Work 5: 1. Water flows through a fire hose of diameter 6.35cm at a rate of 0.012 m 3 /s. The fire hose ends in a nozzle with an inner diameter of 2.20cm. What is the speed at which the water exits the nozzle? 2. The effective diameter of nitrogen molecule is m 10 10 8 . 3 , to calculate the mean free path of nitrogen molecule and the mean collision time for continual two times. 3. The effective diameter of oxygen molecule is m 10 10 6 . 3 , the calculate the collision frequency of oxygen molecules, respectively when (a) the temperature of oxygen is 300K, and the pressure is 1.0atm. (b) The temperature of oxygen is 300K, and the pressure is 6 10 0 . 1 atm. 4. The mean free path of some kind of gas molecule is m 7 10 63 . 2 when the temperature is 25 , (a) to calculate gas pressure when the effective diameter of gas molecule is m 10 10 6 . 2 . (b) To calculate the collision times with other gas molecules in 1m distance. 5. Oil at 20 o C ( 888 kg / m 3 and 0.8 kg / m s ) is flowing steadily through a 30m long cylinder pipe with a diameter of a 5cm. During the flow, the pressure at the pipe inlet and exit are measured to be 823 KPa nd 96 KPa, respectively. Determine the flow rate of oil through the pipe assuming the pipe is (a) horizontal, (b) inclined 15 o upward, (c) inclined 15 o downward. Also verify that the flow through the pipe is laminar.

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

### -

Educational Resources
• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

Browse Documents