Question

For a butanol combustion process (formation enthalpy -332,000 kJ / kmol) C4H10O with an excess of...


For a butanol combustion process (formation enthalpy -332,000 kJ / kmol) C4H10O with an excess of 25% air (reagents are at standard conditions T = 25 C, P = 1atm).

Determine:

a. Air-fuel ratio

b. Fuel-air ratio

c. Molar fractions of the product

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Two kmol of ethane (C2H6) is burned with an unknown amount of air during a combustion...
Two kmol of ethane (C2H6) is burned with an unknown amount of air during a combustion process. An analysis of the combustion products reveals that the combustion is complete, and there are 4 kmol of free O2 in the products. Determine (a) the air–fuel ratio and (b) the percentage of theoretical air used during this process (c) The equivalent ratio
Two kmol of ethane (C2H6) is burned with an unknown amount of air during a combustion...
Two kmol of ethane (C2H6) is burned with an unknown amount of air during a combustion process. An analysis of the combustion products reveals that the combustion is complete, and there are 4 kmol of free O2 in the products. Determine (a) the air–fuel ratio and (b) the percentage of theoretical air used during this process (c) The equivalent ratio
The enthalpy of combustion ΔcH° of gaseous cyclopropane, C3H6, is -2091 kJ mol-1 at 25 °C....
The enthalpy of combustion ΔcH° of gaseous cyclopropane, C3H6, is -2091 kJ mol-1 at 25 °C. a. What is the standard enthalpy of formation of cyclopropane? b. What is the standard internal energy change of combustion of cyclopropane at 25 °C. c. Using heat capacity values in the back of your book, what is the standard enthalpy of combustion of cyclopropane at 100 °C? d. Again using heat capacity values in the back of your book, what is the standard...
The standard enthalpy change for the combustion of 1 mole of ethylene is -1303.1 kJ C2H4(g)...
The standard enthalpy change for the combustion of 1 mole of ethylene is -1303.1 kJ C2H4(g) + 3 O2(g) ----> 2 CO2(g) + 2 H2O Calculate the change of Hf for ethylene based on the following standard molar enthalpies of formation. molecules Change in Hf (kJ/mol) CO2 -393.5 H2O -241.8
1. A combustion chamber is fed with 50 kmol/h of butane and 2000 kmol/h of air....
1. A combustion chamber is fed with 50 kmol/h of butane and 2000 kmol/h of air. Calculate the % excess air used and composition of the gases leaving combustion reactor, assuming complete combustion of butane. 2. In manufacture of chlorine, feed containing hydrochloric acid gas and air are fed to the reactor. The product gases leaving the reactor are found to contain 13.2% HCl, 6.3% 02, 42.9% N2, 30% Cl2 and 7.6% H2O (by weight). Calculate: i) The percent excess...
a)What is the enthalpy of combustion (in kJ/mol) for methanol (CH3OH) under standard conditions (water is...
a)What is the enthalpy of combustion (in kJ/mol) for methanol (CH3OH) under standard conditions (water is produced as a liquid)? Use the appendix in your textbook, do not enter units, and answer with 4 significant digits. b)What is the enthalpy of formation of propylene (C3H6) if the enthalpy of combustion for propylene is -2058.3 kJ/mol (water is produced as a liquid)? Use the appendix in your textbook, do not enter units, and answer with 3 significant digits. c)What is the...
9. Use the following experimentally derived combustion data to calculate the standard molar enthalpy of formation...
9. Use the following experimentally derived combustion data to calculate the standard molar enthalpy of formation (ΔH°f ) of liquid methanol (CH3OH) from its elements. 2 CH3OH(l) + 3 O2(g) → 2 CO2(g) + 4 H2O(l)     ΔH°rxn = −1452.8 kJ C(graphite) + O2(g) → CO2(g)                               ΔH°rxn = −393.5 kJ 2 H2(g) + O2(g) → 2 H2O(l)                                     ΔH°rxn = −571.6 kJ (1) −238.7 kJ/mol    (2) 487.7 kJ/mol       (3) −548.3 kJ/mol    (4) 20.1 kJ/mol         (5) 47.1 kJ/mol
Methanol vapor is burned with excess air in a catalytic combustion chamber. Liquid methanol initially at...
Methanol vapor is burned with excess air in a catalytic combustion chamber. Liquid methanol initially at 25 ◦C is vaporized at 1.1 atm and heated to 100 ◦C; the vapor is mixed with air that has been preheated to 1100 ◦C, and the combined stream is fed to the reactor at 100 ◦C and 1 atm. The reactor effluent emerges at 300 ◦Cand 1atm. Analysis of the product gas yields a dry-basis composition of 4.8% CO2, 14.3% O2, and 80.9%...
Physical Chemistry Thermodynamics: The enthalpy of combustion of benzoic acid (C6H5COOH) is commonly used as the...
Physical Chemistry Thermodynamics: The enthalpy of combustion of benzoic acid (C6H5COOH) is commonly used as the standard for calibrating constant-volume bomb calorimeters; its value has been accurately determined to be —3226.7 kJ mol-1, (a) When 0.9862 g of benzoic acid was oxidized, the temperature rose from 21.84°C to 25.67°C. What is the heat capacity of the calorimeter? (b) In a separate experiment, 0.4654 g of glucose (C6H1206) was oxidized in the same calorimeter, and the temperature rose from 21.22°C to...
1. The standard enthalpy of formation of phenol is -165.0 kJ/mol. Calculate its standard enthalpy of...
1. The standard enthalpy of formation of phenol is -165.0 kJ/mol. Calculate its standard enthalpy of combustion. [Express your answer in units of kilojoules per mole, kJ/mol] C6H5OH + 7O2 --> 6 CO2 + 3H2O ΔHc = 6ΔHf(CO2) + 3ΔHf(H2O) - ΔHf(C6H5OH) - 7ΔHf(O2) 2. Calculate the work done on a closed system consisting of 50.0 grams of argon, assumed ideal, when it expands isothermally and reversibly from a volume of 5.00 L to a volume of 10.00 L at...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT