{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

final-201-10-sol

# 5 155 487 213 kjmole 961 3928 1131 4530 the energy

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 109 107 105 103 Temperature (C) 101 99 97 95 93 91 89 87 85 83 81 79 77 75 0 0.1 0.2 0.3 0.4 0.5 x, y 0.6 0.7 0.8 0.9 1 5) (60 pts) Methane (CH4 ) and air (21 mole% O2 and 79 mol% N2) are fed to a furnace. The methane enters at 25°C; the air enters at 100°C and a flow rate of 1000 mole/min. The gases react in the furnace and produce an exhaust gas in which the following flow = 5 mole/min, = 95 mole/min, = rates are observed on a dry basis: 12.5 mole/min and = 790 mole/min. The temperature of the exhaust gas is 1000°C. What is the percent excess air in this system? How much water (vapor) is produced? How much heat transfers and in which direction (into the furnace or out of the furnace)? SOLUTION The process diagram for this system looks like Exhaust Gases 5 / 95 / 12.5 / 790 / T = 1000°C Air 1000 0.79 0.21 T = 100°C / Furnace CH4 H2O (v) T = 25°C T = 1000°C The two reactions that are occurring are 3 2 2 2 2 Now do a carbon balance to get 5 95 100 / If there are 100 mol/min of CH4 entering the second reaction indicate...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern