Question

In: Chemistry

One hundred moles of CO at 300ºC is burned with 100 moles of O2 which is...

One hundred moles of CO at 300ºC is burned with 100 moles of O2 which is at 100ºC; the exit gases leave at 400ºC. What is the heat transfer to or from the system in kJ? Define whether the heat is transferred to or away from the system.

Solutions

Expert Solution

                         

Initial                     100            100                 0

Final                       50              0                  50

Final Change in Heat = 50 * Heat of formation of CO2 - 50 * Heat of Combustion of CO

=> 50 * (-393.95) + 50 * (282.99)

=> 50 * (-393.5 + 282.99)

=> -5525 .5 KJ/mol

The heat is evolved from the system, since the reaction is exothermic in nature


Related Solutions

One hundred moles of moist air (100 moles) at 25oC and 100 kPa has a dew...
One hundred moles of moist air (100 moles) at 25oC and 100 kPa has a dew point of 16oC. If you want to remove 50% of the initial moisture in the air (at a constant pressure of 100 kPa). 1. Sketch the process. 2. Determine to what temperature should you cool the air? Assume that after removal of 50% of moisture from the air, the final air is saturated.
100 moles of ethane (C2H6) are burned with 50% excess air. The percentage conversion of the...
100 moles of ethane (C2H6) are burned with 50% excess air. The percentage conversion of the ethane is 90%; of the ethane burned, 25% reacts to form CO and the balance reacts to form CO2. Calculate the molar composition of the stack gas on a dry basis and the mole ratio of water to dry stack gas.
100 moles of a mixture containing 45.9 wt% methane and remainder propane are burned with 40%...
100 moles of a mixture containing 45.9 wt% methane and remainder propane are burned with 40% excess oxygen. There is 80% conversion of both methane and propane. Given MWs: CH4= 16, C3H8= 44, O2= 32, H2O = 18, CO2= 44 a) Balance the following reactions:____ CH4 + ____ O2 -->____ CO2+ ____ H2O ____ C3H8 + ____ O2--->____ CO2 + ____ H2O (I understand this and have it correct) b) How many moles of O2 must be supplied for 80%...
100 moles/hour of pure ethane at 25 degrees Celsius and 1.0 atm are burned with 50.0%...
100 moles/hour of pure ethane at 25 degrees Celsius and 1.0 atm are burned with 50.0% excess air producing a desired product of carbon dioxide and an undesired product of carbon monoxide. The fractional conversion of the ethane is 80.0% (on a molar basis). 95% of ethane that reacts goes to carbon dioxide. Determine the molar flow rate and molar composition of the gaseous product stream, which is at 400 degrees Celsius and 1.0 atm. Completely label your diagram, list...
Clarence Corporation has one hundred (100) shares of stock outstanding which are owned by Shirley and...
Clarence Corporation has one hundred (100) shares of stock outstanding which are owned by Shirley and Deidra who are unrelated. Shirley owns forty (40) shares of the stock and Deidra owns sixty (60) shares of the stock. Clarence Corporation redeems twelve (12) of Shirley’s shares of stock for $800 per share. Shirley paid $200 per share for her stock three (3) years ago. Assuming Clarence Corporation has significant Earning And Profit (E&P), which of the following is correct regarding the...
A mixture of 0.157 moles of C is reacted with 0.117 moles of O2 in a...
A mixture of 0.157 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0 L vessel at 500.0 K, producing a mixture of CO and CO2. The limiting reagent of the below reaction is carbon. 3C(s)+2O2​(g) CO2​(g)+2CO(g) For 0.157 moles of carbon, determine the amounts of products (both the CO and CO2) formed in this reaction. Also determine the amount of O2 remaining and the mole fraction for CO.
A mixture of .158 moles of C is reacted with .117 moles of O2 in a...
A mixture of .158 moles of C is reacted with .117 moles of O2 in a sealed, 10.0L vessel at 500K, producing a mixture of Co and CO2. The total pressure os .6961atm. What is the partial pressure of CO? 3 C(s) + 2 O2 (g) = 2 CO (g) + CO2 (g)
2.76 moles of c5h12 is reacted with 22.3 moles of o2. what is the limiting reactant?
2.76 moles of c5h12 is reacted with 22.3 moles of o2. what is the limiting reactant?
Methane gas (CH4) at -10°C is burned with pure O2 at 5°C. The O2 is fed...
Methane gas (CH4) at -10°C is burned with pure O2 at 5°C. The O2 is fed at a mol ratio of 1.8:1 relative to CH4. The flue gases leave at 90°C. All compounds exit in the gas phase. Assume the system is at steady state and no work is done. DHo f, CH4, gas = -74.84 kJ/mol Cp (for all gases and vapors): 30 J/mol.K DHo f, CO2, gas = -393.51 kJ/mol DHo f, H2O, gas = -241.83 kJ/mol a)...
Calculate the theoretical flame temperature for CO gas burned at constant pressure with 100% excess air,...
Calculate the theoretical flame temperature for CO gas burned at constant pressure with 100% excess air, when the reactants enter at 100°C. Please show work, do not copy the solution founded. show your solution! if you can not answer this question, then do not attempt to copy others' work.  
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT