Ethanol is used as an additive in many fuels today. What is the ΔHºrxn for the...
Ethanol is used as an additive in many fuels today. What is the ΔHºrxn for the combustion of ethanol?
2C2H5OH(l) + 6O2(g) → 4CO2(g) + 6H2O(l)
a)401.7 kJ
b)-401.7 kJ
c)-2734 kJ
d)-2469 kJ
Homework Answers
Add Answer to:
Ethanol is used as an additive in many fuels today. What is the ΔHºrxn for the...
Ethanol (C2H5OH) is used as an additive in many fuels today. What is AHørxn (kJ) for...
Ethanol (C2H5OH) is used as an additive in many fuels today. What is AHørxn (kJ) for the combustion of 2 moles of liquid ethanol? C2H5OH (1) + 3 O2() + 2 CO2(g) + 3 H20 (1) Formula Hºf (kJ/mol) @ 298K C2H5OH-277.6 CO2(g) -393.5 H2O () -241.8 H20 -285.8 A. -401.7 kJ B. +401.7 kJ C. -2469 kJ D. +2734 kJ E. -2734 kJ О Е ОА oc OB
QUESTION 3 The balanced equation for the combustion of ethanol is 2C2H5OH(g) + 702(g) -> 4CO2(g)...
QUESTION 3 The balanced equation for the combustion of ethanol is 2C2H5OH(g) + 702(g) -> 4CO2(g) + 6H2O(g) How many grams of oxygen gas are required to burn 3.69 g of C2H50H? (write your answer with 3 sig figs and no units) QUESTION 4
L 255-7.cozts) to 2) Ethanol, C2H5OH, is promoted as a clean fuel and is used as...
L 255-7.cozts) to 2) Ethanol, C2H5OH, is promoted as a clean fuel and is used as an additive in many gasoline mixtures. Calculate the AH rxn for the combustion of ethanol. Tail Substance Hºf(kJ/mol) og C2H5OH( -277.0 5 GHSCUli) + O2(9) -> CO2(g) +H2O() CO2(8) -393.5 737 H20(9) -241.8 A)-1235.4 kJ B-751.8 kJ C) -358.3 kJ D) 358.3 kJ E) 1235.4 Kj
Ethanol (C2H6O) is used as an additive in gasoline . Calculate the molality of an ethanol...
Ethanol (C2H6O) is used as an additive in gasoline . Calculate the molality of an ethanol solution prepared by dissolving 78.6 g of ethanol in enough water to produce 225 g of solution . Select one: A. 11.67 m B. 7.59 m C. 349.33 m D. 0.349 m E. 0.537 m
8. Ethanol is a common biofuel additive for gasoline. Estimate AH (kJ mol) for the combustion reaction of ethanol. Pote...
8. Ethanol is a common biofuel additive for gasoline. Estimate AH (kJ mol) for the combustion reaction of ethanol. Potentially useful bond energies are: H-H = 436 kJ/mol, O=0 = 499 kJ/mol, O-H 463 kl/mol, C=O = 799 kl/mol, C-O 358 kJ/mol, C-H= 411 kJ/mol, C-C = 346 kJ/mol a) -6000 b) - 1601 c) -1250 d) o e) + 4700
Time Taken:0:33:09 Brandon Bates: Attempt 1 MULUI PUT Ethanol undergoes combustion in oxygen to produce carbon...
Time Taken:0:33:09 Brandon Bates: Attempt 1 MULUI PUT Ethanol undergoes combustion in oxygen to produce carbon dioxide gas and liquid water. Standard enthalpy formation of [CO2(e)] = -393.5 kJ/mol and [H20(1)] = -285.8 kJ/mol, C,H,OH(1) = -277.6 kJ/mol, what is the standard enthalpy of combustion of ethanol? kJ C,H, OH(1) + 3 02(g) + 2 CO2(g) + 3 H2O(l); A Hex = AH, /mol AH° (ræn) = In A Hfº (products) - In AHF ° (reac tants) +2349 kJ/mol +1366.8...
Calculate the amount of energy released as heat at constant pressure when 1.00 g of glucose...
Calculate the amount of energy released as heat at constant pressure when 1.00 g of glucose undergoes a combustion reaction according to the equation below: C6H12O6(s) + 6O2(g) ® 6CO2(g) + 6H2O(g) ∆rHϴ = –2806 kJ (A) 16.00 kJ (B) 156.0 kJ (C) 468.0 kJ (D) 2806 kJ (E) 505600 kJ
CO2 is produced in a 1.75 L container at 751 mmHg and 35oC by combustion ethanol...
CO2 is produced in a 1.75 L container at 751 mmHg and 35oC by combustion ethanol (C2H6O), how many mL of ethanol was used in this combustion? (density of ethanol is 0.789 g/mL). a) 4.78 mL b) 0.399 mL c) 3.78 mL d) 4.00 mL e) 2.00 mL
Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. Carbon dioxide...
Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. Carbon dioxide is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2(g) produced per megajoule of heat released from the combustion of each fuel under standard conditions (1 atm and 25 �C). Each must be in mol * MJ^-1 (a) coal, C(s, graphite) (b) natural gas, CH4(g); (c) propane, C3H8(g);...
A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods.
A bomb calorimeter, or constant volume
calorimeter, is a device often used to determine the heat of
combustion of fuels and the energy content of foods.Since the "bomb" itself can absorb energy, a separate experiment is
needed to determine the heat capacity of the calorimeter. This is
known as calibrating the
calorimeter.In the laboratory a student burns a 0.796-g sample
of glutaric
acid(C5H8O4)
in a bomb calorimeter containing 1000. g of water.
The temperature increases from 25.70 °C to28.30 °C....
Ethanol (C2H5OH) is used as an additive in many fuels today. What is AHørxn (kJ) for the combustion of 2 moles of liquid ethanol? C2H5OH (1) + 3 O2() + 2 CO2(g) + 3 H20 (1) Formula Hºf (kJ/mol) @ 298K C2H5OH-277.6 CO2(g) -393.5 H2O () -241.8 H20 -285.8 A. -401.7 kJ B. +401.7 kJ C. -2469 kJ D. +2734 kJ E. -2734 kJ О Е ОА oc OB
QUESTION 3 The balanced equation for the combustion of ethanol is 2C2H5OH(g) + 702(g) -> 4CO2(g) + 6H2O(g) How many grams of oxygen gas are required to burn 3.69 g of C2H50H? (write your answer with 3 sig figs and no units) QUESTION 4
L 255-7.cozts) to 2) Ethanol, C2H5OH, is promoted as a clean fuel and is used as an additive in many gasoline mixtures. Calculate the AH rxn for the combustion of ethanol. Tail Substance Hºf(kJ/mol) og C2H5OH( -277.0 5 GHSCUli) + O2(9) -> CO2(g) +H2O() CO2(8) -393.5 737 H20(9) -241.8 A)-1235.4 kJ B-751.8 kJ C) -358.3 kJ D) 358.3 kJ E) 1235.4 Kj
8. Ethanol is a common biofuel additive for gasoline. Estimate AH (kJ mol) for the combustion reaction of ethanol. Potentially useful bond energies are: H-H = 436 kJ/mol, O=0 = 499 kJ/mol, O-H 463 kl/mol, C=O = 799 kl/mol, C-O 358 kJ/mol, C-H= 411 kJ/mol, C-C = 346 kJ/mol a) -6000 b) - 1601 c) -1250 d) o e) + 4700
Time Taken:0:33:09 Brandon Bates: Attempt 1 MULUI PUT Ethanol undergoes combustion in oxygen to produce carbon dioxide gas and liquid water. Standard enthalpy formation of [CO2(e)] = -393.5 kJ/mol and [H20(1)] = -285.8 kJ/mol, C,H,OH(1) = -277.6 kJ/mol, what is the standard enthalpy of combustion of ethanol? kJ C,H, OH(1) + 3 02(g) + 2 CO2(g) + 3 H2O(l); A Hex = AH, /mol AH° (ræn) = In A Hfº (products) - In AHF ° (reac tants) +2349 kJ/mol +1366.8...
A bomb calorimeter, or constant volume
calorimeter, is a device often used to determine the heat of
combustion of fuels and the energy content of foods.Since the "bomb" itself can absorb energy, a separate experiment is
needed to determine the heat capacity of the calorimeter. This is
known as calibrating the
calorimeter.In the laboratory a student burns a 0.796-g sample
of glutaric
acid(C5H8O4)
in a bomb calorimeter containing 1000. g of water.
The temperature increases from 25.70 °C to28.30 °C....
Most questions answered within 3 hours.
-
Let C = (2.25 m, 15 ∘ above the negative x-axis) and D = (30.6
m,...
asked 19 minutes ago -
How are the concepts of microevolution and macroevolution
linked?
asked 4 minutes ago -
Use the following information to answer the question:
Coupon Rate = 6% Face Value = $1,000...
asked 14 minutes ago -
Two vectors, given in unit vector notation, are A = 5i + 4j + 3k
and...
asked 6 minutes ago -
Based on the assigned readings, complete this sentence: “Mutual
respect and understanding are built one _____...
asked 6 minutes ago -
complete the problem and solution paragraph below, include 2-3
causes and 2-3 solutions for them.
remember...
asked 27 minutes ago -
Find the magnetic field (in cylindrical coordinates) both inside
and outside of a very long cylindrical...
asked 12 minutes ago -
of the following statements below is/are an example of a
normative statement?
I. The water shortage...
asked 21 minutes ago -
Carbon disulfide is prepared by heating sulfur and charcoal. The
chemical equation is
S2(g)+C(s)−⇀↽−CS2(g) Kc=9.40 at...
asked 25 minutes ago -
I was looking for help with a computer science c programming
class. not c++
This program...
asked 51 minutes ago -
Albinism is an autosomal recessive condition characterized by
absence of melanin pigment from the skin, eye...
asked 41 minutes ago -
Suppose you're looking at a physics example online, and come
across this expression in the middle...
asked 49 minutes ago