Answered: The higher heating value of ethanol was…

The higher heating value of ethanol was obtained to be 1350 KJ/mol. Compute for the heat of formation of ethanol ΔHv of water (25 C) = 40.70 KJ/mol

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 73E: Calculate the enthalpy of combustion of butane, C4H10(g) for the formation of H2O(g) and CO2(g). The...

See similar textbooks

Related questions

Q: Determine the enthalpy change for the reaction: 3C2H2(g) → C6H6(l) given the following…

A: • Given, 2C6H6(l)+1502(g)⟶12C2(g)+62O(g),ΔH=−6271kJ — (i)…

Q: rmation of using the following data: 2AB(g)+B2(g)⟶2AB2(g)ΔrH∘=−250kJ/mol (equation 1)…

A: Standard enthalpy of formation included that we have to form 1 mole of product in standard state.…

Q: 1. Methanol (CH3OH) is often used as a fuel in high-performance engines in race cars. Using the data…

A: CH3OH(l) + (3/2)O2 (g) CO2 (g)+ 2H2O(l) Standard enthalpy of Combustion = {HF(CO2(g)) +2 x…

Q: Using the equations H2 (g) + F2 (g) --> 2HF (g) Delta H = -79.2 kJ/mol C (s) + 2F2 (g) --> CF4…

A: We have to do manipulation in the given equations to reach desired equation ,and whatever…

Q: Using the given molar enthalpies of formation, determine the change in enthalpy for the combustion…

A: We have to calculate the change in enthalpy for the given reaction

Q: Calculate the amount of heat needed to boll 32.6 g of methanol (CH,OH), beginning from a temperature…

Q: Would more or less heat be evolved by burning gaseous nitro methane versus liquid nitro methane? And…

A: Given molecules: Gaseous nitromethane and liquid nitro methane

Q: A 0.836 g of CH14 are burned in a constant volume calorimeter, the calorimeter temperature rises…

Q: Use the following thermochemical equations to calculate the standard enthalpy of formation of…

Q: How can we calculate the enthalpy change of the system for each region of the heating curve?

A: Thermodynamics is study of change in relationship between heat and work. Enthalpy change is heat…

Q: Using the molar enthalpies of formation and the formula, determine the change in enthalpy for the…

Q: How much energy is required to heat 100.0 g H2O from a liquid at 20.0°C to a complete gas at 100 °C?…

Q: Duncan knows that it takes 36400 calcal of energy to heat a pint of water from room temperature to…

A: Duncan knows that it takes 36400 calcal of energy to heat a pint of water from room temperature to…

Q: Enthalpy of formation (kJ/mol) Substance A(s) -17.22 A(g) 25.35 A(I) 4.18 B(s) 28.06 B(g) 45.08 C(s)…

Q: If 4.771 mol of a material produces 775.5 kJ of heat in a reaction, determine the molar enthalpy for…

A: Molar enthalpy for a reaction if it is an exothermic reaction is the heat produced per 1 mole of the…

Q: Compute for the standard enthalpy change of the reaction: 2H,Se + 2H,O → 2H,O@+ SO2(2) (g) Given the…

Q: Suppose we have separate 25g samples of iron, silver, and gold. If 125 J of heat energy is applied…

A: Mass, amount of energy supplied and identity of three metal samples for which final temperature…

Q: Using the equations H, (g) + F, (g) → 2 HF (g) AH° = -79.2 kJ/mol C'(s) + 2 F, (g) → CF, (g) AH° =…

A: Given, Equation1: H2(g) + F2(g) 2HF(g) ∆H = -79.2 KJ/mol Equation2: C(s)…

Q: MYSTERY METAL (3) Mass o F EMPIY cup 4.0g Mass of cuptwater 64:0g Mass of waler bg 64.0g 4.0g 60g…

A: Given; Mass of water (mw) = 60 g Mass of Mystery metal (mm)= 5.4 g Temperature water before adding…

Q: Under constant-volume conditions, the heat of combustionof glucose (C6H12O6) is 15.57 kJ/g. A…

A: (a) Here given as, the heat of combustion of glucose (C6H12O6), q= 15.57 kJ/g. Mass of glucose that…

Q: An electric heater supplies energy to a 55.0 g block of Al. The temperature was originally 22.5 °C…

Q: Methanol (CH3OH) is often used as a fuel in high-performance engines in race cars. Using the data in…

A: Combustion :- The process of burning a compound in excess of air or oxygen is called combustion The…

Q: Enthalpy is a state function. What does it mean to be a state function?

Q: If 1410 J of heat energy is applied to 100g water at 25°C, what will happen? Show using equations to…

A: The amount of energy absorbed or released by a substance is given as; Q = mCdT where Q=energy, m =…

Q: 12.) A 36.0 g sample of liquid water at 100.0°C is heated to 145.0 C. How much heat does the water…

A: Given: mass of liquid water = 36.0 g Initial temperature of water = 100 oC Final temperature of…

Q: ΔrU for C6H12O6 was measured to be -2805 kJ mol-1 in a bomb calorimeter. A 1.752 g sample of this…

A: Given, ∆U for C6H12O6 is -2805 kJ/mol Sample burned is 1.752 g Molar mass of C6H12O6 is 180 g/mol…

Q: I can determine mathematically how much energy will be produced or absorbed for a given chemical…

A: Energy produced or released ( or enthalpy change ) for a reaction can be determined using standard…

Q: Use Hess' Law to caiculate the enthaipy chan known thermochemical data: I1,0(8) - CH4(g) + H20(g)→…

Q: Explain me! Juliet was studying thermodynamics. She was doing well in understanding the lesson…

A: Thermodynamics describes the relation between physical properties of matter like heat, work,…

Q: The molar heat capacity of silver is 25.35 J/mol⋅∘CJ/mol⋅∘C. How much energy would it take to raise…

A: Mass of silver = 9.60 g Change in Temperature = 20.0 degree C molar heat capacity = 25.35 J / mol…

Q: The specific heat capacities of F2(g), Cl2(g), Br2(g), andI2(g) are 0.824, 0.478, 0.225, and 0.145 J…

A: Given The specific heat capacity of F2(g) = 0.824 J K-1 g-1 The specific heat capacity of Cl2(g) =…

Q: The optimum drinking temperature for a Shiraz is 15.0 °C. A certain bottle of Shiraz having a heat…

Q: explain the concept of heat capacity and enthalpy explain briefly

A: Heat capacity = Heat capacity is the amount of heat given to the compound so that it's temperature…

Q: A 100.0-g bar of bismuth is heated from 25 °C to 50 °C during which it absorbs 308 J of heat. Assume…

Q: The work done to compress a gas is 70 J. As a result, 25 J of heat is given off to the…

A: Work done to compress = Work done on the system And work done on the system is taken with a positive…

Q: A 2.24 g sample of ammonium nitrate (NH4 NO3) is added to 78.44 mL of water in a coffee cup…

A: As temperature of water decreases hence this reaction is endothermic reaction. For endothermic…

Q: Using the equations H₂ (g) + F₂ (g) → 2 HF (g) ∆H° = -79.2 kJ/mol C (s) + 2 F₂ (g) → CF₄ (g) ∆H° =…

A: It is given that the enthalpy for the reactions, H2(g) + F2(g) → 2 HF(g) ∆H° = -79.2 kJ/mol C(s) +…

Q: 76. The evaporation of water is endothermic: H2O(1) – → H,O(g) AHxn = +44.01 kJ %3D What minimum…

A: The evaporation of water is an endothermic process. The enthalpy of evaporation is given by: The…

Q: Using the data given, calculate the following: a) amount of heat lost by the water (Qwater) b)…

A: Mass of calorimeter with water = 181.5 g Mass of empty calorimeter = 48.1 g…

Q: Calculate the amount of milk at 4°C needed to lower the temperature of 250 mL of coffee at 95°C to…

Q: Calculate the energy change for a system undergoing an exothermic process in which 15.4 kJ of heat…

A: Given : Heat energy = 15.4 kJ Work done = 6.3 kJ

Q: The molar heat of combustion of a compound is 1,350 kJ/mol. If 0.875 moles of this compound was…

A: Bomb calorimeters are useful in measuring reaction's enthalpy by burning specific amount of that…

Q: How much energy is needed to convert a 55 gram sample of solid potassium at 25°C to liquid potassium…

A: Given thag, Amount of solid potassium, m= 55 g Temperature of solid potassium Ts = 25°C Temperature…

Q: What is the heat gained by the ice inside the calorimeter if the heat lost by the warm water inside…

A: Calorimeter is an object useful for measuring heat of a chemical reaction.

Q: When one mole of calcium carbonate reacts with ammonia, solid calcium cyanamide, CaCN2 and liquid…

A: The enthalpy of formation (ΔHf°) is the standard reaction enthalpy (ΔH°) for the production of the…

Q: The molar heat capacity at constant pressure for CO, is 36.61 J mol-1 K-1. How much heat in J is to…

Q: atomization

Q: A 35.2-g sample of metal X requires 1251 Jof energy to heat the sample by 25.0 °C.Calculate the…

A: Given information:

Q: How much heat energy is needed to raise the temperature of 10.00 grams of solid aluminum (c = 0.90…

A: Heat energy can be calculated as: Q = mc∆T Where, Q = heat m = mass c = Specific heat ∆T = Change in…

Question

The higher heating value of ethanol was obtained to be 1350 KJ/mol. Compute for the heat of formation of ethanol

ΔHv of water (25 C) = 40.70 KJ/mol

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

9.47 If 14.8 kJ of heat is given off when 1.6 g of HCl condenses from vapor to liquid, what is Hcond for this substance?
Would the amount of heat absorbed by the dissolution in Example 5.6 appear greater, lesser, or remain the same if the heat capacity of the calorimeter were taken into account? Explain your answer.
The reaction SO3(g)+H2O(l)H2SO4(aq) is the last step in the commercial production of sulfuric acid. The enthalpy change for this reaction is 227 kJ. In designing a sulfuric acid plant, is it necessary to provide for heating or cooling of the reaction mixture? Explain.
The enthalpy of combustion of solid carbon to form carbon dioxide is 393.7 KJ/mol carbon, and the enthalpy of combustion of carbon monoxide to form carbon dioxide is 283.3 KJ/mol CO. Use these data to calculate H for the reaction 2C(s)+O2(g)2CO(g)
The statement Energycan beneithercreatednor destroyedis sometimes used as an equivalent statement of the first law of thermodynamics. There areinaccuracies to the statement, however. Restate it tomake it less inaccurate.
Consider the combustion of propane: C3H8(g)+5O2(g)3CO2(g)+4H2O(l)H=2221KJ Assume that all the heat in Example 7-3 comes from the combustion of propane. What mass of propane must be burned to furnish this amount of energy assuming the heat transfer process is 60.% efficient?
Calculate the enthalpy of combustion of butane, C4H10(g) for the formation of H2O(g) and CO2(g). The enthalpy of formation of butane is 126 kJ/mol.
Starting with equation 2.27 andthe original definitionof enthalpy, derive the fact that Cp-=Cv-+R
9.54 The phase change between graphite and diamond is difficult to observe directly. Both substances can be hurned, however. From these equations, calculate H for the conversion of diamond into graphite. C(s,graphite)+O2(g)CO2(g) H= -393.51 kJ C(s,diamond)+O2(g)CO2(g) H= -395.94 kJ
If the internal energy of a thermodynamic system is increased by 300. J while 75 J of expansion work is done, how much heat was transferred and in which direction, to or from the system?
How much work is performed by 1 mole of water freezing to 1 mole of ice at 0C at standard pressure? Use the densities from the previous exercise.
When a gas expands, what is the sign of w? Why? When a gas contracts, what is the sign of w? Why? What are the signs of q and w for the process of boiling water?