D. Calculate the enthalpy change by using the given chemical reaction below with the net chemical reaction. Note: Use the rule on Hess' Law 1. Net Reaction: 4NH,+ 30, 2N2 + 6H¿0 N2 + 3H; 2NH3 -92 KJ H2O H2 + % O; +286 KJ

Q: Adding 5.47 g of to 140 g of water in a coffee-cup calorimeter (with stirring to dissolve the salt)…

A: According to the question, we are adding 5.47 g of NH4NO3 to 140 g of water in a coffee-cup…

Q: Determine the standard enthalpy of formation (AH°t) for NO2(g) given the information from the…

A:

Q: Consider the following thermochemical data to: 2CO2(g) → 2 C (s, graphite) + 2 O2 (g) H2 (g) +…

A: Given  Equation No Reaction.                       ∆H°(kJ/mol) A 2CO2 (g) → 2 C (s, graphite)…

Q: (a) Consider the following chemical reaction: 3FE203(s) + C0(g) → 2FE304(s) + CO2(g) AH° = ? Use the…

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: Determine the enthalpy change for the reaction using the given AH values, 3X (s) + Z₂M3 (g) --> 2Z…

A:

Q: Consider the following chemical reaction: C3H8(g) + H2(g) → C2H6(g) + CH4(g) Calculate the enthalpy…

A: In-order to find the enthalpy change of the desired reaction, the given reactions has to be written.

Q: A bomb calorimeter can be used to measure the enthalpy of reaction for combustions such as the…

A: The chemical reaction may be written as:   B2H6 (g) +3O2 (g) ----> B2O3 (s)+3H2O(g)      ∆H =…

Q: A 1.800-g sample of phenol 1C6H5OH2 was burned in a bombcalorimeter whose total heat capacity is…

A: Given: Phenol 1 mole of C6H5OH2 was burned in a bomb calorimeter.

Q: Nitrogen and oxygen gas combine to form nitrogen dioxide according to the reaction N2(g) + 20s(g)…

A:

Q: The addition of 1.210 g of zinc metal to 0.100 L of 0.1851 M HCl in a coffee cup calorimeter causes…

A: In any particular reaction, enthalpy change that causes at pressure constant condition is considered…

Q: (c) Consider the following chemical reaction: C;Hs(g) + H2(g) C2H6(g) + CH4(g) ΔΗ Calculate the…

A: Hess's law states that the amount of heat evolved or absorbed in a process in independent of the…

Q: , When 25.0 mL of 1.00M HNO3at 25.0oC is added to 25.0 mL of 1.00M KOH at 25.0oC in a coffee cup…

A: The reaction of acid and base results in the formation of salt and water and heat is evolved. This…

Q: . What is the essence of determining the heat capacity of the calorimeter? Is it possible to replace…

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

Q: A scientist measures the standard enthalpy change for the following reaction to be 189.8kJ:…

A: The data on standard enthalpy of formation of different compounds may be used to determine the…

Q: Meals-ready-to-eat (MREs) are military meals that can beheated on a flameless heater. The heat is…

A: Specific heat- Specific heat is the amount of heat required to raise the temperature of 1g of…

Q: Calculate the enthalpy of formation, ∆Hof, for C4H9OH using the following data:   C4H9OH (l)   +…

A: Given;

Q: (a) Consider the following thermochemical data to: 2CO2(g) → 2 C (s, graphite) + 2 O2 (g) AH° =…

A: The enthalpy change of an reaction is extensive property i.e on changing the stoichiometry of…

Q: Part C at A piece of metal weighing 5.50 g at a temperature of 47.8 °C was placed in a calorimeter…

A:

Q: For which reaction below does the enthalpy change under standard conditions correspond to a standard…

A: Standard enthalpy of formation :- The enthalpy change involved  when one mole of a substance is…

Q: 27. Given the standard enthalpies of formation for the following substances, determine the reaction…

A: The given reaction for which the enthalpy is to be determined is given below : The heat of…

Q: (c) Consider the following chemical reaction: C3H8(g) + H2(g) - C2H6(g) + CH4(g) AH° = ? Calculate…

A: According to Hess’s Law, when the direction of reaction reverses, then the enthalpy change will get…

Q: Glycine, C2H5O2N, is important for biological energy. The combustion reaction of glycine is: 4…

A: Since the ∆Hºrxn for the above reaction can be written as  ∆Hºrxn = ∆Hºf[CO2(g)] X 8 + ∆Hºf[H2O(l)]…

Q: A calorimeter contains 140 g water. The calorimeter and the water inside are both at 24 °C. A piece…

A: Please find the answer attached

Q: Two parter, thank you in advance! Use standard enthalpies of formation to determine ΔHorxnfor:…

A: Standard enthalpy of formation ΔH for NO2, HNO3, H2O and NO is given.

Q: A scientist measures the standard enthalpy change for the following reaction to be -679.4 kJ :…

A: The given chemical reaction is as follows: 2NH3(g) + 2O2(g) → N2O(g) + 3H2O(l)  ,…

Q: Which of the following is true about Hess's law? The enthalpy change is dependent of the pathway by…

A: According to Hess Law, if a chemical reaction can be expressed as the sum of two or more chemical…

Q: D. Consider the following reaction: 2H,(g) + O,(g) –→ 2H,0(1) AH = -572 kJ %3D - a. How much heat is…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: true? (a) This reaction is endothermic. (b) Reacting 2 moles N2, 6 moles O2, and 2 moles H2 would…

A: As □H is negative therefore reaction is exothermic in nature.  As we know, enthalpy is extensive…

Q: 7.5 g KNO3 dissociated in 49.0 g of water in a coffee cup calorimeter. The thermometer reading…

A: Given: Mass of KNO3 dissolved = 7.5 g. Mass of water = 49.0 g. Initial temperature of water = 20.4…

Q: 1. Consider the following reaction:            2CH3OH(g) --> 2CH4(g)+ O2(g)    ΔH= 252.8 kj  (a)…

A:

Q: Given the following data   Calculate ΔH for reaction   On the basis of the enthalpy change, is this…

A: Answer is explained below.

Q: Using the reactions below, determine the enthalpy of the following reaction 1 g S8(s) + 02(g) →…

A: Enthalpy of a chemical reaction can be calculated from the heat of the given reactions.

Q: 25. From your textbook, find the values for the enthalpy of formation (AHof) for CaCO3(s), CaO(s),…

A: Standard enthalpy of reaction for a chemical reaction is the difference between total molar enthalpy…

Q: First, balance the reaction and then use the standard enthalpies of formation below to calculate…

A: ∆Hrx∘=∑ n∆Hf∘(products)-∑ n∆Hf∘(reactants) where 'n' represents the…

Q: 4NH3(g) + 502(g) ---> 4NO(g) + 6H2O(1) 2NO(g) + 02(g) - 3NO2(g) + H20(1) ---> 2HNO3((aq) + NO(g) MH…

A: The enthalpy change for the overall reaction is sum of the enthalpy change of the steps in the…

Q: Given: 2NH3(g) + 3N20(g) → 4N2(g) + 3H20(1) ....AH1 = -1010 kJ 4NH3(g) + 302(g) → 2N2(g) + 6H2O(1)…

A:

Q: 1. Use the given information to calculate the enthalpy of reaction for the following reaction: P4010…

A:

Q: A scientist measures the standard enthalpy change for the following reaction to be -348.6 kJ :…

A: The given reaction is : 2Na(s)  +  2H2O(l)  →  2NaOH(aq)  +  H2(g) The standard enthalpy change for…

Q: A scientist measures the standard enthalpy change for the following reaction to be-138.9 kJ: H;(2) +…

A: The standard enthalpy change of a system represents the heat content of a system or the heat…

Q: Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g) →4S(s) + 602(g) AH° = ??? kJ rxn…

A:

Q: Suppose that the reaction of 3.49 moles produces 1.46 kJ of heat. What is the molar enthalpy of the…

A: The heat of reaction when 3.49 moles of product is formed is = 1.46 kJ The molar enthalpy of…

Q: Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g)→4S(s) + 602(g) AH°rxn = ??? kJ…

A: Given, a) SO2(g) ➝ S(s) + O2(g)   ∆H° = +296.8 kJ b) 2SO2(g) + O2(g) ➝ 2SO3(g)  ∆H° = -197.8 kJ…

Q: (c) Consider the following chemical reaction: C;Hs(g) + H2(g) C2H6(g) + CH4(g) ΔΗ? %3D Calculate the…

A: In-order to find the enthalpy change of the desired reaction, the given reactions has to be written.

Q: Consider the two reactions. 2NH3(g)+3N2O(g)⟶4N2(g)+3H2O(l)            Δ?∘=−1010 kJ…

A: The given equations are:

Q: 4F€O(s) + Oz(g) → 2Fe,03(s) > Calculate the standard enthalpy change from standard enthalpies of…

A: Given reaction: 4FeO(s) + O2(g) ------->> 2Fe2O3(s)

Q: enthalpy change

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Q: Using the provided table, determine the enthalpy (in kJ/ mol) for the reaction 2 NH3 (g) + 3 N,0…

A: The given reaction is: 2NH3 (g) + 3N2O (g) → 4N2 (g) + 3H2O (g)   The given enthalpies of formation…

Q: Consider the following chemical reaction: C3H8(g) + H2(g) → C2H6(g) + CH4(g) ΔH° = ? Calculate the…

A:

Q: (c) Consider the following chemical reaction: C3H8(g) + H2(g) - C2H6(g) + CH4(g) AH° = ? Calculate…

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.