At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197 J/K). This is an exothermic reaction with an enthalpy change (∆HRXN = -91.8 kJ). What is the entropy change of the universe (∆SUNIV) for this reaction in J/K when it occurs at 25°C?  (One decimal place)

Q: Using the following reactions: H 2 (g) +  F 2 (g) --> 2 HF (g)             ∆H = –537 kJ x   C (s)…

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Q: using the information given below, calculate the Δ So at 25oC for the given reaction.…

A: Entropy change of a reaction can be calculated by sum of standard entropy of product - sum of…

Q: The unbalanced reaction of oxygen with benzene is shown below: C6H6 (l)  +   O2 (g) →  CO2 (g)  +…

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Q: Calculate Δ?∘ΔG∘ at 298 K for the reaction…

A: We have given                     C(s)   +   O2(g)    ⟶    CO2(g)                  ΔG∘=−397.28…

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Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: we have to calculate the value of ∆SUNIV

Q: Use the following data to determine whether the conversion of diamond into graphite is exothermic or…

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

Q: Calculate ∆Hrxn in kJ/mol of NaOH, if the initial temperature is 25.00 oC and the final temperature…

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Q: Using the following reactions: NO (g) + 0.5 O 2 (g) --> NO 2 (g)             ∆H = 50 kJ x    N 2O 4…

A: Determine  the enthalpy change of the given reaction.

Q: Calculate ∆H for the reaction 2 Al(s) + Fe2O3(s) → 2 Fe(s) + Al2O3(s) given the following data:…

A: Given :-  Equation ∆H 2 Al(s) + 3/2 O2(g) → Al2O3(s) -1601 kJ 2 Fe(s) + 3/2 O2(g) → Fe2O3(s)…

Q: Calculate ∆Gº for the reaction, C3H8(g)+5O2(g)→3CO2(g)+4H2O(g), where ∆Gfº=-23.5 kJ/mol for C3H8(g),…

A: Gibbs free energy is the energy which is utilised to do uswful work. It is an extensive property…

Q: When a 25.0 g sample of AgNO3 dissolves in 100.0 g of water in a calorimeter, the temperature drops…

A: The change in enthalpy (∆H) of a reaction is given by the equation: ∆H = m×C×∆T ⋯⋯⋯⋯⋯⋯(1) where m is…

Q: The reaction                         CBr4(g) + H2(g)  →  CHBr3(g) + HBr(g) occurs at room…

A: Entropy change is represented by ∆S. It specifies the randomness of a particular system. Entropy…

Q: ∆H rxn

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Q: Above what temperature (in Kelvin) does the following reaction become nonspontaneous?   FeO(s) +…

A: if ΔH and ΔS are both negative , so spontaneous at low temperature , non spontaneous at high temp.…

Q: Given ΔG∘rxn=103.7 kj/mol for N2O(g) and ΔG∘rxn=-520.3 kj/mol for BaO(s), calculate ΔG∘rxn for the…

A: Given : ΔG∘rxn=103.7 kj/mol for N2O(g)  ΔG∘rxn=-520.3 kj/mol for BaO(s), calculate ΔG∘rxn .

Q: Calculate ∆Hrxn for the reaction of MgO(s) with HCl(g):            2 MgO(s)+ 4 HCl(g)⟶⟶  2 MgCl2(s)…

A: Calculate ∆Hrxn for the reaction of MgO(s) with HCl(g):   2 MgO(s)+ 4 HCl(g)⟶⟶  2 MgCl2(s) +2H2O(l)…

Q: Phosgene, COCl2, was used as a war gas during World War I. It reacts with the moisture in the lungs…

A: Formation reactions are defined as the reaction that forms 1 mole of the product from the elements…

Q: Calculate ∆H°25° for the reaction: Fe3O4(s) + 2 C(s, graphite) → 3 Fe(s) + 2 CO2(g) from the…

A: The given reaction is, Fe3O4(s) + 2 C(s, graphite) → 3Fe(s) + 2CO2(g)   The given reactions are, 1)…

Q: Calculate Δ?∘Δ⁢G∘ at 298 K for the reaction…

A: C(s)+O2(g)⟶CO2(g) Δ⁢G∘(A) =−397.28 kJ/mol Equation A S(s)+O2⁡(g)⟶SO2⁢(g)⁢ ⁢ΔG∘(B)=−300.19 kJ/mol…

Q: The following reaction is being studied: MX (s) ⟶ M+ (aq) +  X-(aq) ∆Hrxn = ??? kJ/mol MX To find…

A: Given that : Initial temperature of DI water = 22˚C Final temperature of solution = 24.5 ˚C Also,…

Q: 2NaHCO3(s)--> Na2CO3(s)+CO2(g) +H2O(l) When 30.0 g NaHCO3 decomposes, the change in energy…

A: Given:2NaHCO3(s)--> Na2CO3(s)+CO2(g) +H2O(l)

Q: In the following experiment, solid CaCl2 (M = 110.98 g/mol) is dissolved in water: CaCl2(s) →…

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Q: Given the data below, the energy released during the formation of ∆fHo  for the gas diborane, B2H6…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: If ∆Hf° for the following substances are as follows, Ca(OH)2 is -986.6kJ/mole, H3AsO4 is -900.4…

A: Given, ∆Hf° of Ca(OH)2 : -986.6 kJ/mole ∆Hf° of H3AsO4 :  -900.4 kJ/mole ∆Hf° of Ca(H2AsO4)2 :…

Q: Strontium carbonate is responsible for the red color in fireworks. It is generated in the reaction…

A: Given;

Q: From the data at 25 °C:  Fe2O3(s) + 3C(graphite) → 2 Fe(s) + 3 CO(g) ∆Ho = 492.6 kJ/mol  FeO(s) +…

A: Given: Fe2O3(s) + 3C(graphite) → 2 Fe(s) + 3 CO(g) ∆Ho = 492.6 kJ/mol  FeO(s) + C(graphite) → Fe(s)…

Q: Phosgene, COCl2, was used as a war gas during World War I. It reacts with the moisture in the lungs…

A: Given:-             S° (COCl2) = 284 J/mol.K∆Hf° = -223 kJ/mol. The reaction is:…

Q: Calculate the value of ∆H for the following reaction given this additional information; Al (s) +…

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Q: The heats of reaction for the following combustion reactions were determined experimentally:…

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