Question

In: Chemistry

The enthalpy of combustion of solid carbon to form carbon dioxide is 2393.7 kJ/mol carbon, and...

The enthalpy of combustion of solid carbon to form carbon dioxide is 2393.7 kJ/mol carbon, and the enthalpy of combustion of carbon monoxide to form carbon dioxide is 2283.3 kJ/ mol CO. Use these data to calculate DH for the reaction 2C + O2 > 2CO

Solutions

Expert Solution

C(s) + O2(g) -----------> CO2 (g)       H = -2393.7KJ/mole ---------------> 1

CO(g) +1/2 O2(g)   -----> CO2(g)   H    = -2283.3KJ/mole -------------> 2

equation 1 and 2 multifly with 2

2C(s) + 2O2(g) -----------> 2CO2 (g)       H = -4787.4KJ/mole

2CO(g) + O2(g)   -----> 2CO2(g)   H    = - 4566.6KJ/mole

(-)           (-)                    (-)                           (+)

------------------------------------------------------------------------------------------------

2C(s) + O2(g) -------------> 2CO(g)            H    = -220.8KJ     >>>>answer

queen_honey_blossom answered 1 year ago
Next > < Previous

Related Solutions

The enthalpy of sublimation (direct conversion from solid to gas) of carbon dioxide is 26.1 kJ/mol....
The enthalpy of sublimation (direct conversion from solid to gas) of carbon dioxide is 26.1 kJ/mol. What value will the enthalpy of deposition (direct conversion from gas to solid) have? Use 3 significant figures and units of kJ/mol. The enthalpy of sublimation (direct conversion from solid to gas) of carbon dioxide is 26.1 kJ/mol. How much energy is required to sublimate 8.3 kg of carbon dioxide? Give your answer in kJ. The mass of carbon dioxide that shows up in...
Silicon dioxide and solid carbon react to form solid silicon and carbon monoxide.What is oxidized?
Silicon dioxide and solid carbon react to form solid silicon and carbon monoxide.What is oxidized?
The enthalpy of combustion of octane is 5074.9 kJ/mol and its density is 703 kg/m3 ....
The enthalpy of combustion of octane is 5074.9 kJ/mol and its density is 703 kg/m3 . On a mild winter day a room of volume 40 m3 needs to be warmed up from 10 to 20 OC? (Consider: cair = 0.718 J/g K; dair = 1.225 g/L).
Solid diiodine pentoxide reacts with carbon monoxide gas to form solid iodine and carbon dioxide gas....
Solid diiodine pentoxide reacts with carbon monoxide gas to form solid iodine and carbon dioxide gas. How much solid iodine is produced when 50.0 g of diiodine pentoxide reacts with excess carbon monoxide?
Solid iron (III) oxide reacts with solid carbon to form iron metal and carbon dioxide gas....
Solid iron (III) oxide reacts with solid carbon to form iron metal and carbon dioxide gas. (A) Write the balanced chemical equation for this reaction, including states of matter. (B) 22.34g of iron (III) oxide produces a 41.04% yield of carbon dioxide. How many grams of carbon dioxide are produced?
The molar enthalpy of fusion of solid copper is 13.0 kJ mol-1, and the molar entropy...
The molar enthalpy of fusion of solid copper is 13.0 kJ mol-1, and the molar entropy of fusion is 9.58 J K-1 mol-1. (a) Calculate the Gibbs free energy change for the melting of 1.00 mol of copper at 1.39×103 K. kJ (b) Calculate the Gibbs free energy change for the conversion of 4.27 mol of solid copper to liquid copper at 1.39×103 K. kJ (c) Will copper melt spontaneously at 1.39×103 K? _____Yes No (d) At what temperature are...
Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the...
Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2(s)→CO2(g). When dry ice is added to warm water, heat from the water causes the dry ice to sublime more quickly. The evaporating carbon dioxide produces a dense fog often used to create special effects. In a simple dry ice fog machine, dry ice is added to warm water in a Styrofoam cooler. The dry ice produces fog until it evaporates away,...
Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the...
Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2(s)→CO2(g). When dry ice is added to warm water, heat from the water causes the dry ice to sublime more quickly. The evaporating carbon dioxide produces a dense fog often used to create special effects. In a simple dry ice fog machine, dry ice is added to warm water in a Styrofoam cooler. The dry ice produces fog until it evaporates away,...
Heat of Combustion and Enthalpy The heat of combustion of hexane is 45.6 kj/g. If you...
Heat of Combustion and Enthalpy The heat of combustion of hexane is 45.6 kj/g. If you burn all of a 1.20 g sample of hexane, and all of the heat is transferred to a pot of water determine the following: (a)The amount of heat in J, and the sign of the energy change (b)The amount of heat absorbed in water: (c) The final temperature of water if there are 250 g of water in the pot, and the intial water...
Ethanol melts at -114.0 ∘C. The enthalpy of fusion is 5.02 kJ/mol and the enthalpy of...
Ethanol melts at -114.0 ∘C. The enthalpy of fusion is 5.02 kJ/mol and the enthalpy of vaporization is 38.6 kJ/mol. The specific heats of solid and liquid ethanol are 0.970 J/g⋅K and 2.30 J/g⋅K, respectively. How much heat is needed to convert 39.0 g of solid ethanol at -160.0 ∘C to liquid ethanol at -35.0 ∘C ? I am really confused on this, any help would be greatly appreciated. Thanks!
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT