Part BBased on the value of A,U = -1370 kJ mol-1,determine the value of A,H for the combustion of ethanol at 298 K.C2H5OH(I) + 3 O2(g) →2 CO2(g) + 3 H,0()Enter your answer using four significant figures.Πνα ΑΣφ?A,H =kJ mol 1

The question is based on the concept of chemical thermodynamics. We have to calculate enthalpy…

• Part B Based on the value of A,U = -1370 kJ mol-1,determine the value of A,H for the combustion of ethanol at 298 K. C2H,OH() + 3 O2(g) → 2 CO2(g) + 3 H20(1) Enter your answer using four significant figures. μνα ΑΣφ ? A‚H = kJ mol 1

• Part B Based on the value of A,U = -1370 kJ mol-1,determine the value of A,H for the combustion of ethanol at 298 K. C2H,OH() + 3 O2(g) → 2 CO2(g) + 3 H20(1) Enter your answer using four significant figures. μνα ΑΣφ ? A‚H = kJ mol 1

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter2: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 2.83E: Benzoic acid, C6H5COOH, is a common standard used in bomb calorimeters, which maintain a constant...

See similar textbooks

Related questions

Q: For nitrogen gas the values of Cv and Cp at 25°C are 20.8 J K−1 mol−1 and 29.1 J K−1 mol−1,…

A: Hello. Since your question has multiple questions, we will solve the first question for you. If you…

Q: The heat capacity of chloroform (trichloromethane, CHCl3) in the range 240 K to 330 K is given by…

A: Given information: Chloroform (CHCl3) is heated from 273 K to 300 K, here to calculate the change in…

Q: Calculate delta Hrxn for the combustion of one mole of propane using Hess's Law.…

A: According to Hess's law, the enthalpy change of the final reaction can be calculated by adding the…

Q: AH solution= qreaction /n salt Lab 18 Part 1: Determination of calorimeter constant AH (glucose) AH…

A: The ∆Hrxn is calculated by the formula, ∆Hrxn=∑nHfproducts-∑mHfreactants The Qcomb is calculated by…

Q: Give an example to show the difference between the three types of specification of a system, the…

A: Macroscopic means large things visible to the naked eye while microscopic means tiny things not…

Q: Use the data given in the table to calculate the value of Δ?∘rxn at 25∘ C for the reaction described…

A: Since in qu you have mentioned Δ?∘rxn. So I'm assuming it to be ΔH0rxn Since for any reaction…

Q: Consider the following generic reaction: A+2B→C+3DA+2B→C+3D, with ΔHΔH = 125 kJkJ . Determine the…

A: Here we use the concept of chemical reaction and value of delta H.

Q: A 20.2 g quantity of neon changes temperature from 30oC to 160oC at constant pressure. Assuming neon…

Q: 5. Under what conditions (a) is dA < 0 the appropriate criterion for spontaneity? (b) is dG <0 the…

Q: a) For the combustion of liquid ethanol, what is the ΔH of that reaction at 298 K, 1 atm? b)…

A: The combustion reaction of liquid ethanol is represented as: C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(l)…

Q: What is the maximum work (in kJ) that can be done with the combustion of 1.0 mole of methanol at 298…

A: W = -∆nRT Where W = work ∆n = change in moles = Sum of coefficients of gaseous product- sum…

Q: E2C.8(b) Estimate AH®(750 K) for the reaction N,(g) + H,(g) → NH,(g) from the listed value of the…

Q: PE6.2 Calculate the standard molar Gibbs free energy change (AGran) at 298 K and at 400 K for the…

A: Standard molar Gibbs free energy change, is the change in free energy which occurs when one mole of…

Q: 3. Consider the dissociation of molecular hydrogen gas into atomic hydrogen gas: H2 (g) → 2 H(g).…

A: Given: Dissociation of molecular hydrogen- H2 (g) →2H (g) At 298 K, H-H bond enthalpy is 436 kJ/mol…

Q: Estimate the standard internal energy of formation of liquid methyl ethanoate, CH3COOCH3, at 298 K…

A: Interpretation: The standard internal energy of formation of liquid methyl ethanoate, CH3COOCH3, at…

Q: 4. Suppose 5 ml. of 1.5 M ethylene diamine is added to 50 mL of 0.15 M Ni solution in an identical…

A: Given: Concentration of ethylene diamine i.e. en = 1.5 M Volume of en solution taken = 5 mL = 0.005…

Q: What is the internal energy (in J) of 5.50 mol of an ideal monatomic gas at 201°C? J

A: Given: Monoatomic gas number of moles, n = 5.50 moles Temperature, T = 201°C = 474.15K

Q: 6E. A 2.25 mole sample of CO,(g), for which C,-37.1 J/K at 298 K, expands reversibly and…

A: Given: Moles of CO2 = 2.25 mol At 298 K, Cp,m = 37.1 J/K Initial volume = 4.50 L Final volume =…

Q: Based on the value of A,U = -726.0 kJ mol1,determine the value of A,H for the combustion of methanol…

Q: Find ΔG0 for the following reaction, at 25°C, using ΔHf0 and S0 values. NH4Cl(s) → NH3(g) + HCl(g)…

A: The reaction given is NH4Cl(s) → NH3(g) + HCl(g)

Q: What is ΔG°rxn in kJ/mol for the following reaction at 406 Kelvin? Please report 2 decimal places,…

Q: CH, (g)+20,(g)→ CO,(g)+2H,O() Table 2. Standard molar Gibbs free energy change of formation at 25 °C…

A: The standard free energy change of a chemical reaction can be calculated by the standard free energy…

Q: Find A;H for the combustion of naphthalene at 298 K. When considering phase, assume all reactants…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: Carbon dioxide from the atmosphere "weathers," or dissolves, limestone (CaCO3) by the reaction…

Q: Vinyl chloride, one of the reagents used to make the common plastic polyvinyl chloride (PVC) is…

A: The enthalpy change of a chemical reaction can be calculated by the standard heat of the formation…

Q: For an isothermal and isobaric process that has AU = 100 kJ/mol, AH = 125 kJ/mol and AS = 225…

A: In thermodynamics, the Helmholtz free energy is a thermodynamic potential that measures the useful…

Q: 16. Given the following set of reaction data, C(s) + O2(8) → CO,(8) 2CO(g) +O2(g) 2H2 (8) + O2(g) AH…

A: C(s) +O2 ---> CO2 ∆H = -393.5 kj/mol 2CO + O2 --> 2CO2 ∆H = -566.0…

Q: 2.9 The standard enthalpy of formation of the metallocene bis(benzene)chromium was measured in a…

A: For the given reaction - CrC6H62(s) →Cr(s) + 2 C6H6(g) ; ∆rU° = +8.0 kJ.mol-1The Enthalpy of the…

Q: Figure 2.1 shows the experimental DSC scan of hen white lysozyme (G. Privalov et al., Anal. Biochem.…

A: It is not possible for me to follow the second method suggested by your instructor of cutting the…

Q: The standard enthalpy of combustion of propane, C3Hg, is -2.220 x 103 kJ mol-1 at 400 K. Use the…

A: Given : ∆H° for combustion of methane at 400 K = -2.220 x 103 KJ/mol T1 = 400 K T2 = 600 K

Q: Given that the AG°F (kJ/mol) at 298 K for difluoroacetylene (C2F2) and hexafluorobenzene (C6F6) are…

Q: P3C.6 Use values of enthalpies of formation, standard entropies, and standard heat capacities…

Q: Given the information R + X → Q + Z ΔH= 165 kJ Q + Z → T ΔH= 165 kJ calculate ΔH for each of the…

Q: Find A¡U for the combustion of biphenyl in kJ mol at 298 K. The heat capacity of the bomb…

A: Molar heat capacity can be calculated by dividing heat capacity to the number of moles.

Q: Use the molar constant volume heat capacities for gases given in Topic 4C (as multiples for R) to…

A: The change in enthalpy (ΔH) of each reactant and product is calculated using equation (1). The molar…

Q: 4) Using heat capacities from the table and formation enthalpy of HCl(g) A¢H° = -92.3 kJ molª (at…

A: Kirchhoff’s law can be related for the standard enthalpies at two different temperatures and the…

Q: What are the values of ΔH and ΔS (in kJ>mol) for the change from gaseous toliquid H2O?

A: The Gibbs free energy denoted by G, combined enthalpy and entropy into a single value. The change in…

Q: Use the data given to calculate the value of AG°rxn for the reaction at 25°C AgCI(s) Ag (aq) + Cl-…

Q: The standard enthalpy of formation of HCe (g) at 298 K is equal to -92.3 kJ mol-4. The…

Q: Based on the reactions 1. 2HS+ 30, 250 2H0e H-- 103594 2. 290, 250; + 0z AH,+197.78 kJ 3. 2H,S +…

A: By Hess's law : Required equation = equn (1) - equn (2) - equn (3) ∆H = ∆H1 - ∆H2 - ∆H3 =…

Q: Find the internal energy of 30 g of Argon gas (Ar) at 90°C. (Molar mass of Argon; Mr = 40 g mol-1,…

Q: Calculate the reaction enthalpy for the decomposition of hydrogen peroxide, 2H2O210 H26) + O26) →…

Q: 1.94 x 1024 molecules of an ideal gas with energy E = NKBT is subjected to a cyclic, quasi- static…

A: Answer: Average energy of N gas molecules is E=32kBT Here: kB=Boltzmann constantT=Temperature (in…

Q: At low temperatures the heat capacity of Ag(s) is found to obey the Debye law Cp,m = aT3, with a =…

A: Given: a=1.956×10-4 J K-4 mol-1 Debye law Cp,m= aT3 To find: Sm(10K) -Sm(0) for silver

Q: Reaction: Combustion of H2 with excess O2 mass = 2.4 g delta T = 1.2 oC heat capacity of bomb…

Q: A spirit burner containing 5.0 g sample of propanol (C3H7OH) is used to heat up a beaker of water…

A: Here, in this experiment, propanol is combusted to heat up a beaker of water.

Q: 1) When 120 mg of naphthalene, C1oHae), was burned in a bomb calorimeter the temperature rose by…

A: Standard heat of combustion of Naphthalene = - 5156.1 kJ/mol Standard heat of combustion of Phenol =…

Q: The reaction of liquid methyl chloride (CH3Cl) with water produces methanol and hydrogen chloride…

A: Given reaction CH3Cl(l) + H2O(g) --> CH3 OH (l) +HCl(g) Also given ∆H°rxn = 28.3 kJ/mol So the…

Q: 6- Which of the following statements is false? Temperature is a state function Work is a state…

A: Work can't be a state function because it is proportional to the distance an object is moved, which…

Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Part B
Based on the value of A,U = -1370 kJ mol-1,determine the value of A,H for the combustion of ethanol at 298 K.
C2H5OH(I) + 3 O2(g) →2 CO2(g) + 3 H,0()
Enter your answer using four significant figures.
Πνα ΑΣφ
?
A,H =
kJ mol 1

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 3

VIEW

Step by step

Solved in 3 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Benzoic acid, C6H5COOH, is a common standard used in bomb calorimeters, which maintain a constant volume. If 1.20 g of benzoic acid gives off 31, 723 J of energy when burned in the presence of excess oxygen and in a water bath having a temperature of 24.6 C, calculate q, w, H, and U for the reaction.
A) For nitrogen gas the values of Cv and Cp at 25°C are 20.8 J K−1 mol−1 and 29.1 J K−1 mol−1, respectively. When a sample of nitrogen is heated at constant pressure, what fraction of the energy is used to increase the internal energy of the gas? B) How much energy (in KJ) is required to raise the temperature of 136.4 g N2 from 25.0°C to 87.0°C in a vessel having a constant volume?
5. The specific heat Cp is given by βT + γT2. Find the enthalpy, entropy and Gibbs free energy at T = 50° C.
Consider the following generic reaction: A+2B→C+3DA+2B→C+3D, with ΔHΔH = 125 kJkJ . Determine the value of ΔHΔH for each of the following related reactions. 3A+6B→3C+9D C+3D→A+2B 1/2C+3/2D→1/2A+B
The temperature of a block of iron (Cv,m = 25.1 J K-1 mol- 1) of mass 1.4 kg fell by 65 °c as it cooled to room temperature.What is its change in internal energy?
Q.30. Determine, at 298 K, Δr1H0, the standard enthalpy of the reaction (1) between dinitrogen tetraoxide and hydrazine: (1) N2O4 (g) + 2 N2H4 (l) à 3 N2 (g) + 4 H2O (g) Knowing the standard reaction enthalpies, at 298 K, of the following reactions: (2) NH3 (g)à 1/2 N2 (g) + 3/2 H2 (g) ; Δr2H0 = + 46,19 kJ . mol–1 (3) N2O4 (g) à 2 NO2 (g) ; Δr3H0 = + 58,04 kJ . mol–1 (4) 2 NH3 (g) à N2H (l) + H2 (g) ; Δr4H0 = + 142,80 kJ . mol–1 (5) 2 NO2 (g) + 4 H2 (g) à N2 (g) + 4 H2O (g) ; Δr5H0 = – 1 033,66 kJ . mol–1
1. In an isobaric system, one (1) mole of monoatomic ideal gas at 25 °C was heated, then undergoes expansion against a constant external pressure of 1 atm until the initial volume of 1 L become 10 L. Calculate: a) Temperature T2 b) Work, w c) Internal Energy, AU d) Enthalpy, AH. e) Heat , q
3. What is the change in entropy associated with heating water from 15 ºC to 55 ºC? The constant volume heat capacity of water is CV,m = 75.3 J/mol K, and is constant over this temperature range.
Use the molar constant volume heat capacities for gases given in Topic 4C (as multiples for R) to estimate the change in reaction enthalpy of N2 (g) + 3 H2 (g) ---> 2 NH3 (g) when the temperture is increased from 300. K to 500. K. Ignore the vibrational contributions to heat capacity. Is the reaction more or less exothermic at the higher temperature? Atoms Linear Molecules Nonlinear Molecules Cv,m 3/2 R 5/2 R 3 R Cp,m 5/2 R 7/2 R 4 R
a chemist carefully measure the amount of heat needed to raise the temperature of a 0.60 kg sample of a pure substance from 47.3 c tp 53.3c. the experiment shows that 15. kj of heat are needed. what can the chemist report for the specific heat capacity of the substance? round to 2 sig figs.
Estimate the standard internal energy of formation of liquid methyl ethanoate, CH3COOCH3, at 298 K from its standard enthalpy of formation, which is -442 kJ mol-1.
A sample of the sugar d-ribose (C5H10O5) of mass 0.727 g was placed in a calorimeter and then ignited in the presence of excess oxygen. The temperature rose by 0.910 K. In a separate experiment in the same calorimeter, the combustion of 0.825 g of benzoic acid, for which the internal energy of combustion is −3251 kJ mol−1, gave a temperature rise of 1.940 K. Calculate the enthalpy of formation of d-ribose.