6. Complete the model below to show the endothermic process of the ionic compound NaCI (Na* = cation, Cl = anion) separating in water. Before After Na 8+ Potential Energy: Kinetic Energy: Potential Energy: Kinetic Energy: System Surroundings System Surroundings System Surroundings System Surroundings

Q: 1. Use standard enthalpies of formation table to determine the change in enthalpy for each of these…

A:

Q: For the equation H20 (g) --> H20 (1) answer the following questions: Q1) Is it endothermic or…

A: For the following reaction, H2O (g) →H2O (l) This reaction goes for transition of phase of water. 1.…

Q: An endothermic reaction corresponds to one in which 1. change in energy is negative; heat is…

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Q: 1) H3O* 2) ELOH Br 1) CI , AICI3 2) Zn(Hg), HCI, heat conc. HNO3 conc. H2SO4 OCH3

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Q: 1. When comparing 1 mol CO2 (s) or 1 mol CO2(g) at the same temperature, the one with the higher…

A: Enthalpy of system is the heat contained in the system. It includes internal energy of system as…

Q: The following data was collected as per Part 1A of the lab procedure. Mass ice = 9.00 g Heat of…

A: The data given is,

Q: Which statement is true regarding the thermochemical equation    A +  B  + KJ à  AB A. The reaction…

A: 7. Given reaction is,  A + B + kJ --> AB  We need to find if this reaction is exothermic or…

Q: pies of reactions are the same in the forward direct tions A and B add up to a reaction C, sum of…

A: According to Hess's law,  Enthalpy of a reaction remains constant whether it completes in single…

Q: Using these reactions and enthalpies calculate the enthalpy of reaction for C3H4(g) + 2 H2(g) →…

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Q: Assume that 4.19 × 106 kJ of energy is needed to heat a home. If this energy is derived from the…

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Q: The standard molar enthalpy of formation of NH3(g) is −45 kJ/mol. What is the enthalpy change if…

A: Standard molar enthalpy of formation of NH3(g) = -45 kj/mol Moles of N2 gas = Given MassMolar…

Q: Using the equations N2 (g) + O2 (g) → 2 NO (g) AH° = 180.6 kJ/mol N2 (g) + 3 H2 (g) →2 NH3 (g) AH° =…

A: Given,

Q: A chemist measures the enthalpy change (delta)H during the following reaction. Use this information…

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Q: Given the following thermochemical equations: NO + O3(2) NO2(2) + O2e) AH1 = -198.9 kJ/mol 1.5 Oz(e)…

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Q: H2(9) + O2(9) → H2O ate the enthalpy change us 2H2O2(1)2H20(1) H2 (9) +02(9)→ H

A: According to the question, Hydrogen peroxide is prepared in a process whose overall change is: H2(g)…

Q: The following data was collected as per Part 1A of the lab procedure. Mass ice = 10.00 g Heat of…

A: Interpretation- To determine the calorimeter constant on the basis of given following data above…

Q: On a hot day (or during a stressful exam!), your body produces liquid swea which then evaporates…

A: Physical change: In a physical change only the state of matter changes. In this change different…

Q: NaOH, H2O NaOH.. H20, heat of 1. CH3CH2MgBr 2. H20, H* 1. PPH3 2. nBuLi Br 3.

A: The carbon next to the functional group is termed as the alpha carbon and the hydrogen bonded to the…

Q: Using the equations N2 (g) + 3 H2 (g) 2 NHs (g) AH° = -91.8 kJ/mol C(s) + 2 H2 (g) → CH (g) AH° =…

A: The enthalpy of formation of two moles of ammonia is equal to-91.8 KJ/mol The enthalpy of formation…

Q: Chemical reactionc most comonly do work on their surroundings by    a. having gases as reagents…

A: A chemical reaction/chemical change is the one in which reactants react with each other and form new…

Q: Using the equations N2 (g) + 3 H2 (g) → 2 NH3 (g)AH° = -91.8 kJ/mol C(s) + 2 H2 (g) → CH4 (g) AH° =…

A: We have to calculate the ∆H∘ for the reaction CH4(g) + NH3(g) → HCN(g) + 3H2(g).

Q: 9. List the 6 state changes and indicate if they are endo- or exothermic.

A: As we move from solid to liquid to gas, all accompanying phase changes require the input of heat.…

Q: Using the equations N2 (g) + O2 (g) → 2 NO (g) AH° = 180.6 kJ/mol N2 (g) + 3 H2 (g) → 2 NH3 (g) AH°…

A:

Q: Write out the reaction NH4CI(s)-NH3(g)+HCI(g) as a series of steps which include the reactions…

A: Solution NH4Cl is AN chemical compound with chemical name salt. it's conjointly called salt, the…

Q: Determine the enthalpy of reaction for P4O10(s) + 6PCI5(g) → 10POCI:(g) P4(s) + 6CI2(g) → 4PCI3(g)…

A: P4 (s) + 6Cl2 (g) ------> 4PCl3(g) ΔH = -1225.6 KJP4 (s) + 5O2 (g) --------> P4O10 (s) ΔH = -…

Q: How much kinetic energy does one mole of oxygen have at 273 Kelvin? 3.40 kJ 3.40 J O 0.0336 kJ O…

A: Here, we have to find the kinetic energy of one mole of oxygen gas at 273 K.

Q: 1. When, a volume of 200 cm³ of Lithium hydroxide solution of concentration 1.00 mol/dm3 and 200 cm…

A: a) endothermic reaction:- A chemical reaction in which heat is absorbed during the process.…

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: C2H4   + 6F2 ----------------->  2 CF4  + 4 HF

Q: Given the following set of reactions: A+ 2B --> C + D DH1 4E --> 2C DH2 Determine the enthalpy of…

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Q: (f) H,SO, (g) HNO, (h) HC10, (i) H,SO;

A: Anion should be name with end -ate Cation should be named as such.

Q: 5. The hypothetical chemical reaction to produce AB2, as shown below, takes a three-step process.…

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Q: Pentane is a good fuel that burns well in oxygen. C5H12(1) + 802(g) → 5CO2(g) + 6H2O(1) Calculate…

A: Formula used :-  ∆Hrxn = ∆Hproduct - ∆Hreactant

Q: Using the equations 2 C6H6 (1) + 15 O2 (g) → 12 CO2 (g) + 6 H2O (g)AH° = -6271 kJ/mol C (s) + O2 (g)…

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Q: 1. Use standard enthalpies of formation table to determine the change in enthalpy for each of these…

A: Given reactions are : a). NaOH (s) + HCl (g) -----> NaCl (s) + H2O (g)  b). CH4 (g) + 2O2 (g)…

Q: 2. Use equations (1) to (4) to calculate the enthalpy change for the reaction represented by…

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Q: Worksheet Question ID: W-3010 A Bunsen burner is lit in a chemistry lab. The gas used in this…

A: A gas burner used for heating in laboratories is called the Bunsen Burner. It is used for combustion…

Q: When 1.16E-1 g of Zn(s) combines with 5.21E1 mL of HCl(aq) in a coffee cup calorimeter, all of the…

A: Here we are required to find the enthalpy change of the displacement reaction between zinc and HCl

Q: 5. When 1.00g of NaCI (MM 58.44 g/mol) is dissolved in 50.00g of water, the temperature drops by…

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Q: 2. Which equation represents the reaction for which the enthalpy change is the standard enthalpy…

A: Applying basics of thermochemistry of change of standard enthalpy formation.

Q: Using the equations 2 C₆H₆ (l) + 15 O₂ (g) → 12 CO₂ (g) + 6 H₂O (g)∆H° = -6271 kJ/mol 2 H₂ (g) + O₂…

A: The enthalpy for the reaction 6 C (s) + 3 H₂ (g) → C₆H₆ (l) is determined by considering all other…

Q: Using the equations 2 C6H6 (1) + 15 02 (g) → 12 CO2 (g) + 6 H2O (g)AH° = -6271 kJ/mol 2 H2 (g) + O2…

A: As you have posted multiple questions and have not specified which part you want us to solve. Hence…

Q: 1.) Does the burning of propane in outdoor grill have positive or negative enthalpy of reaction?…

A: Given: Burning of propane in outdoor grill To find: Enthalpy of the reaction will be positive or…

Q: Using the equations N2 (g) + 3 H2 (g) → 2 NH3 (g) AH° = -91.8 kJ/mol C(s) + 2 H2 (g) → CH4 (g) AH° =…

A: N2(g) +3H2(g) →2NH3(g) ∆H° = -91.8 hj/mol ....(1)C(s) + 2H2(g) →CH4(g) ∆H° = -74.9 kj/mol…

Q: A₂H₂(g) + 6x (g) -2 AX₂(g) + 6 HX(g) A and X are unknown elements. When the reaction given above is…

A: We need to determine enthalpy change for converting H3AO3 from solid to gaseous state.

Q: 1. Use standard enthalpies of formation table to determine the change in enthalpy for each of these…

A: Answer (a) the heat change of the reaction is =+11.75kj/mol Answer (b) the heat change of the…

Q: 4. Discuss the change in enthalpy with the diagram NaOH + H20 - Na* + OH AH = - NH.C1 + H2O NH + Cl…

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Q: Using the equations 2 CHe (1) + 15 O2 (g) → 12 CO2 (g) + 6 H20 (g)AH° = -6271 kJ/mol 2 H2 (g) + O2…

A: Enthalpy is equal to the change in heat during reaction. Enthalpy of reaction is negative if…

Q: The hypothetical chemical reaction to produce AB2, as shown below, takes a three-step proces: AB(g)…

A: Mm

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:

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.