Answered: For the chemical reaction Ca (s) + ½ O2…

For the chemical reaction Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol. What is the enthalpy for the reaction 2 CaO (s) → 2 Ca (s) + O2 (g)?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Suppose that the reaction of 2.172 moles consumes 3.21 kJ of heat. What is the molar enthalpy of the…

A: The answer to the following question is :

Q: Using the equations 2 CH, (1) + 15 0, (g) → 12 CO, (g) + 6 H,O (g)AH° = -6271 kJ/mol C (s) + O, (g)…

A: Above question will be solved by suing the Hess Law.

Q: Calcium hydroxide, which reacts with carbon dioxide to form calcium carbonate, was used by the…

A: Given, moles of CaCO3 formed = 3.8 mol

Q: Suppose that the reaction of 1.116 moles consumes 30.34 kJ of heat. What is the molar enthalpy of…

A: Enthalpy change is associated with change of one substance undergoing any change is called as…

Q: their enthalpy changes, N2 (g) + O2 (g) --> 2 NO (g)…

Q: In the table below, the experimental data collected by Students A, B and C are given on lines 1, 2…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A student performed the procedure described in the lab manual using 48.9 mL of 1.0 M HCl and 49.9 mL…

A: Given, Acid taken: 48.9 mL of 1.0 M HCl Base taken: 49.9 mL of 1.0 M NaOH Temperature change: (24.7…

Q: Enter your answer in the provided box. Calculate the heat (in kJ) associated with 341 g of white…

A: We will first require to convert grams of white phosphorus to moles. Number of moles=MassMolar mass…

Q: The enthalpy change for the reaction of hydrogen gas with fluorine gas to produce hydrogen fluoride…

Q: Write out the chemical reaction whose enthalpy is the heat of formation of gaseous methane, CH4.

A: Standard equation of formation is equation represents formation of one mole compound from its…

Q: A chemist measures the enthalpy change AH during the following reaction: 2 Al(s) + Fe,O3(s)→Al,O3(s)…

A: Given, 2 Al(s) + Fe2O3(s) ➝ Al2O3(s) + 2 Fe(s) ∆H = -852 kJ Calculating the values of ∆H for the…

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

A: The reactions given are, 1) H2 (g) + F2 (g) -------> 2 HF (g) ΔHo = -79.2…

Q: Determine the enthalpy of reaction for 2CH2(g) → C₂H4(g) + 2H₂(g) using the equations: 2C₂H6(g) +…

A: When any reaction is reversed, then the value of the enthalpy of the reaction remains the same but…

Q: Ethanol, C₂H₂OH, is mixed with gasoline and sold as gasohol. Use the following to calculate the…

A: Ethanol reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: The standard enthalpy change for the following reaction is -851 kJ at 298 K. 2 Na(s) + O2(g) +…

Q: The standard molar enthalpy of formation of NH3(g) is –45.9 kJ/mol. What is the enthalpy change if…

A: Given, The standard molar enthalpy of the formation of NH3(g) is given by= -45.9 kJ/mol The mass of…

Q: Pentane (C5H12) is a component of gasoline that burns according to the following balanced equation:…

Q: 1. Calculate the enthalpy for this reaction: 3NO 2 (g) + H 2 O(ℓ) ---> 2HNO 3 (aq) + NO(g) given…

A: Given reactions are : 1). 2NO (g) + O2 (g) -----------> 2NO2 (g), ΔH1o = ─ 116 kJ2). 2N2 (g) +…

Q: Calculate the standard enthalpy change for the following reaction: 2CH3OH(l) + 3O2(g) →…

A: Heat released and absorbed during a reaction by change in bonding is defined as heat of reaction or…

Q: A student performed the procedure described in the lab manual using 49.9 mL of 1.0 M HCI and 49.3 mL…

A: Molarity of HCl = 1.0 MVolume of HCl: 49.9 mLMolarity of NaOH = 1.0 MVolume of NaOH = 49.3 mLInitial…

Q: For the chemical reaction Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol. What is the enthalpy for…

Q: For the chemical reaction H₂ (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the molar enthalpy…

A: In the given question, molar enthalpy of a reaction is given as :- H2(g) + F2(g) -----> 2HF(g)…

Q: Using the equations 2 Fe (s) + 3 C2 (g) → 2 FECI3 (s) AH° = -800.0 kJ/mol Si(s) + 2 Cl2 (g) → SiCl,…

A: 2Fe (s) + 3Cl2 (g) -------> 2FeCl3 (s) ∆ H1° = -800.0 kJ/mol ...................(1) Si (s)…

Q: e enthalpy change

Q: What is the enthalpy change of the following reaction: WO3 (s) + 3 H2 (g) → W (s) + 3 H20 (g) given…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: For the reaction H,(2) + 0,) → H,0M AH = - 286KJ/mol Calculate the enthalpy change when 2.50 g of…

Q: The standard enthalpy change for the following reaction is -467 kJ at 298 K. Na(s) + 1/2 N2(g) + 3/2…

Q: Calculate AH for the reaction NH3 (g) + CH4 (g) → HCN (g) + 3 H2 (g), from the following data. N2…

Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

For the chemical reaction
Ca (s) + ½ O2 (g) → Cao (s) AH° = -635 kJ/mol.
What is the enthalpy for the reaction
2 Cao (s) → 2 Ca (s) + O2 (g)?
kJ/mol
1
2
4
6.
C
7
8.
9.
+/-
х 100
3.

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

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

Calculate the standard enthalpy change (kJ/mol) for the following process given the enthalpies of formation provided below. A + 2 B → 3 C AH¢A = 4 kJ/mol AH;B = 29 kJ/mol AH:C = 92 kJ/mol
Using the equations 2 H: (g) + O2 (g) → 2 H2O (I) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol CaO (s) + H:O (1) → Ca(OH): (s) AH° = -64 kJ/mol Determine the enthalpy (in kJ/mol) for the reaction Ca (s) + 2 H2O (1) → Ca(OH)2 (s) + H2 (g).
The standard enthalpy change for the following reaction is -1.20×10³ kJ at 298 K. 2 Be(s) + O₂(g) → 2 BeO(s) AH° = -1.20x10³ kJ What is the standard enthalpy change for this reaction at 298 K? Be(s) + 1/2O₂(g) → Beo(s) | KJ
The standard enthalpy change for the following reaction is -56.0 kJ at 298 K. Na(s) + 1/2 H₂(g) → NaH(s) ΔΗ° = -56.0 kJ What is the standard enthalpy change for the reaction at 298 K? 2 NaH(s) → 2 Na(s) + H₂(g) kJ
Determine the enthalpy (in kJ/mol) for the reaction 3 SiCl₄ (s) + 4 Fe (s) → 4 FeCl₃ (s) + 3 Si (s) (Please show steps)
For which one of the following is the enthalpy of the reaction the same as the enthalpy of formation? A) H, (9) + F, (g) -2 HF (g) B) Ca (s) + ½ 0, (g) → CaO (s) C) 2 CH,OH (1) + 3 0, (g) → 2 CO, (g) + 4 H,O(g) D) Sro (s) + CO, (g) → → SrCO, (s) MacBook Air DI 80 888 F7 F5 F3 F4 F2 & #3 3 @ $ % 4 5 6 7 8 9 2 P W E R Y F J K. D C V B N
Which is the correct enthalpy level diagram for the reaction: CaO(s) + 3C(s) + 462.3 kJ → CaC2(s) + CO(g)
Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), given the following data: N2(g) + O2(g) → 2NO(g) ΔHrxn = -43.1 kcal mol-1 N2(g) + 3H2(g) → 2NH3(g) ΔHrxn = -21.9 kcal mol-1 2H2(g) + O2(g) → 2H2O(g) ΔHrxn = -115.6 kcal mol-1 Round your answer to 2 decimal places.
For the chemical reaction H, (g) + F, (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the enthalpy (in kJ/mol) for the reaction 3 H, (g) + 3 F, (g) → 6 HF (g)
When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of iron(II) chloride (FeCl2, molar mass = 126.75 g/mol) and 6.8 kJ of heat is produced. What is the enthalpy change for the reaction when 1 mole of iron(II) chloride is produced? round to sig figs
Use the following information to determine the enthalpy for the reaction shown below. CHĄ(g) + H20(g) → CO(g) + 3H2(g) AH° = ? 2C(s) + 2H20(g) → CHĄ(g) + CO2(g) AH° = 15.3 kJ C(s) + H20(g) → CO(g) + H2(g) CO(g) + H2O(g) –→ CO2(g) + H2(g) AH° = 131.3 kJ AH° = -41.2 kJ -206.1 kJ +206.1 kJ -74.8 kJ +74.8 kJ +149.6 kJ
What is the enthalpy change for the first reaction? Fe2O3(s) → 2Fe(s) + 3/2O2(g) ΔH = 4Fe(s) + 3O2(g) → 2Fe2O3 (s) ΔH = -1,652 kJ