1) The heat of combustion for n−heptane, C7H16, is 4,817 kJ/mol. How much heat is released...
1) The heat of combustion for n−heptane,
C7H16, is 4,817 kJ/mol. How much heat is
released if 350 kg of this liquid burns completely?
2) The heat of combustion for ethane, C2H6,
is 47.8 kJ/g. How much heat is produced if 7.0 moles of ethane
undergo complete combustion?
Homework Answers
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1) The heat of combustion for n−heptane,
C7H16, is 4,817 kJ/mol. How much heat is
released...
The heat of combustion for n−heptane, C7H16, is 4,817 kJ/mol. How much heat is released if...
The heat of combustion for n−heptane, C7H16, is 4,817 kJ/mol. How much heat is released if 850 kg of this liquid burns completely?
the heat combustion for n-heptane is 4,187kj/mol. how much heat is produced if 200kg of n-heptane...
the heat combustion for n-heptane is 4,187kj/mol. how much heat is produced if 200kg of n-heptane C7H16) is completely combusted?
Liquid heptane, C7H16 (100.21 g/mol) burns in oxygen gas to yield carbon dioxide and water. What...
Liquid heptane, C7H16 (100.21 g/mol) burns in oxygen gas to yield carbon dioxide and water. What mass of carbon dioxide (44.01 g/mol) is produced when 10.3 g of heptane burns completely? C7H16 + 11O2 --> 7CO2 +8H2O
The heat of combustion of heptane and isooctane are -4501 kJ/mol and -5100 kJ/mol, respectively. ...
The heat of combustion of heptane and isooctane are -4501 kJ/mol and -5100 kJ/mol, respectively. Isooctane (2,2,4-trimethylpentane, pronounced iso-octane) is a pretty good model for the complex mixture of hydrocarbons that is gasoline. The density of these two liquids (essentially the same for all liquid hydrocarbons) is 0.7 g/mL (kg/dm3). What is the heat of combustion of one gallon of the two liquids? Are they essentially the same or quite different? Why? a. b. The U.S. Congress (our representatives) mandated...
The heat of combustion of substance X (molar mass 260 g/mol) is -3196 kJ/mol. How much...
The heat of combustion of substance X (molar mass 260 g/mol) is -3196 kJ/mol. How much heat is released in the combustion of 8 g of X? Include the correct sign for heat of combustion with your answer and enter to 2 decimal places.
The heat of combustion of decahydronaphthalene (C10H18) is −6286 kJ/mol . The heat of combustion of...
The heat of combustion of decahydronaphthalene (C10H18) is −6286 kJ/mol . The heat of combustion of naphthalene (C10H8) is −5157 kJ/mol . (In both cases CO2(g) and H2O(l) are the products.) You may want to reference (Pages 1041 - 1047) Section 24.3 while completing this problem. Substance ΔH∘f (kJ/mol) CO2(g) −393.5 H2O(l) −285.83 C2H6(g) −84.68 C2H4(g) 52.30 A. Calculate the resonance energy of naphthalene. Express your answer using three significant figures.
How much heat is released by the complete combustion of 250 mL of C3H6O (l) (58.08...
How much heat is released by the complete combustion of 250 mL of C3H6O (l) (58.08 g/mol) given that its density is 0.788 g/mL
The standard molar enthalpy of combustion, deltacHm, of C2H6 (g) is -1559.8 kJ/mol. 1. Use some...
The standard molar enthalpy of combustion, deltacHm, of C2H6 (g) is -1559.8 kJ/mol. 1. Use some of the following data to calculate the molar enthalpy of formation of C2H6(g) at 298.15 K 2. Calculate the molar enthalpy of combustion of ethane at 500K Table provided gives values of standard enthalpy of formation values at 298.15 K Substance deltafH (kJ*mol^-1) Cpm (J*K^-1*mol^-1) CO2 (aq) -413.8 N/A CO2 (g) -393.51 37.11 H2O (l) -285.83 75.291 H2O(g) -241.82 33.58 C2H6(g) to be determined...
8. How many kJ are produced in the combustion of 0.150 mol of methane, if 802...
8. How many kJ are produced in the combustion of 0.150 mol of methane, if 802 kJ/mol are released in a balanced reaction? a) 0.0802 kJ b) 0.160 kJ c) 40.1 kJ d) 80.2 kJ e) 120. k) 9. In the reaction of aluminum and iron(III) oxide to form iron and aluminum oxide, AH is -850 kJ. How many moles of aluminum are reacted when 650 kJ of heat are released? a) 0.75 mol b) 1.0 mol c) 1.5 mol...
How much heat (in kJ) is released when 125.0 g of steam at 100.0°C is cooled...
How much heat (in kJ) is released when 125.0 g of steam at 100.0°C is cooled to ice at -15.0°C? The enthalpy of vaporization of water is 40.67 kJ/mol, the enthalpy of fusion for water is 6.01 kJ/mol, the molar heat capacity of liquid water is 75.4 J/(mol ∙ °C), and the molar heat capacity of ice is 36.4 J/(mol ∙ °C).
The heat of combustion of heptane and isooctane are -4501 kJ/mol and -5100 kJ/mol, respectively. Isooctane (2,2,4-trimethylpentane, pronounced iso-octane) is a pretty good model for the complex mixture of hydrocarbons that is gasoline. The density of these two liquids (essentially the same for all liquid hydrocarbons) is 0.7 g/mL (kg/dm3). What is the heat of combustion of one gallon of the two liquids? Are they essentially the same or quite different? Why? a. b. The U.S. Congress (our representatives) mandated...
8. How many kJ are produced in the combustion of 0.150 mol of methane, if 802 kJ/mol are released in a balanced reaction? a) 0.0802 kJ b) 0.160 kJ c) 40.1 kJ d) 80.2 kJ e) 120. k) 9. In the reaction of aluminum and iron(III) oxide to form iron and aluminum oxide, AH is -850 kJ. How many moles of aluminum are reacted when 650 kJ of heat are released? a) 0.75 mol b) 1.0 mol c) 1.5 mol...
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