Isooctane (C8H18: d= 0.692 g/mL) is used as the fuel during a test of a new automobile engine. How much energy (in kJ) is released by complete combustion of 16.8 gal of isooctane to gases. (DeltaHrxn = -5.44 kJ/mol)?
Isooctane (C8H18: d= 0.692 g/mL) is used as the fuel during a test of a new...
3 attempts left Check my work Be sure to answer all parts. Isooctane (CgHis; d=0.692 g/mL) is used as the fuel during a test of a new automobile engine. How much energy (in kJ) is released by complete combustion of 29.7 gal of isooctane to gases (AH' = -5.44 x 103 kJ/mol)? Enter your answer in scientific notation. rxn * 10 kJ
The complete combustion of octane, C8H18, a component of gasoline, proceeds as follows: 2C8H18(l)+25O2(g)→16CO2(g)+18H2O(g) a. How many moles of O2 are needed to burn 1.35 mol of C8H18? b. How many grams of O2 are needed to burn 13.0 g of C8H18? c. Octane has a density of 0.692 g/mL at 20 degrees C. How many grams of O2 are required to burn 1.20 gal of C8H18?
The complete combustion of octane, C8H18, a component of gasoline, proceeds as follows: 2C8H18(l)+25O2(g)→16CO2(g)+18H2O(g) Relevant volumetric equivalencies 1 gal = 3.785 L 1 L = 1000 mL part C Octane has a density of 0.692 g/mL at 20∘C. How many grams of O2 are required to burn 17.0 gal of C8H18? Express the mass in grams to three significant digits.
Consider an internal combustion engine like that used in automobiles. The most common fuel used here is gasoline which is a mixture of hydrocarbons, and an octane rating is given for standardization. Therefore, we will approximate gasoline as being composed of the hydrocarbon, octane, C8H18. Another fuel that is common in racing applications is nitromethane, CH3NO2, used in top fuel dragsters. Let’s consider the combustion of each fuel with oxygen in an internal combustion engine. Let the 8-cylinder engine displacement...
Hydrocarbons, compounds containing only carbon and hydrogen, are
important in fuels.
The heat of combustion of cyclohexane,
C6H12, is
936.8 kcal/mol.
Write a balanced equation for the complete combustion of
cyclohexane.
+
+
How much energy is released during the complete combustion of
309 grams of cyclohexane
?
kcal
b.Combustion reactions are exothermic. The heat of reaction for
the combustion of octane,
C8H18, is
1.308×103 kcal/mol. What is the heat of
combustion for octane in kcal/gram?
kcal/gram...
The standard enthalpy change for the following reaction is -415 kJ at 298 K. Zn(s) + Ch(g) → ZnCl2() AH° = -415 kJ What is the standard enthalpy change for the reaction at 298 K? ZnCl(s) — Zn(s) + Cl2(g) The standard enthalpy change for the following reaction is -50.6 kJ at 298 K. N2H40 - N2(g) + 2 H2(g) AH° = -50.6 kJ What is the standard enthalpy change for this reaction at 298 K? N2(g) + 2 H2(g)...
The combustion of gasoline in a car is similar to our respiration of C12H22O11(s) sugar/food where the products for both are carbon dioxide and water. The complete balance equations for the combustion of gasoline and sugar are listed below 2 C8H18 (l) + 25 O2 (g) → 16 CO2 (g) + 18 H2O (g) C12H22O11(s) + 12 O2 (g) → 12 CO2 (g) + 11 H2O (g) How much energy (in kJ) is produced by the combustion of 1.60 gallons...
Kerosene, a common space-heater fuel, is a mixture of hydrocarbons whose average formula is C12H26. (a) Determine the balanced equation, using the simplest whole-number coefficients, for the complete combustion of kerosene to gases. Include physical states of each reactant and product. (b) If ΔHorxn = −1.50 ×104 kJ for the combustion equation as written in part (a),determine ΔHof of kerosene. (c) Calculate the heat produced by the combustion of 0.38 gal of kerosene (d of kerosene = 0.749 g/mL). (d) How many...
How many kilograms of CO2 are released during the combustion of 25.00 gallons of gasoline? Assume gasoline is pure isooctane with a density of 0.6919 g/ml. If the combustion was used to heat 8565L of water from an initial temperature of 11.0C what would be the final temperature of the water assuming 54.00% efficiency in the energy transfer?
6-5. During the combustion of 10.0 g of octane, CH18, 479.0 kcal is released? Write a balanced equation for the combustion reaction What is the sign of AH for this reaction? How much energy is released by the combustion of 1.00 mol of C8H18 How many grams and how many moles of octane must be burned to release 450.0 kcal? How many kilocalories are released by the combustion of 17.0 g of C.Htc? 6-6 If I burn 0.315 moles of...