he decomposition of ammonium chloride to form ammonia and hydrogen chloride occurs according to the following reaction: a) Predict the sign of the entropy change, AS, for this reaction. Justify your answer. b) The value of AG° for the reaction is negative at high temperatures but positive at low temperatures. Explain. NH,Cla→ NH + HCl@ AH= 176 kJ

Q: Without doing any calculations, determine the sign of ASys and ASurr for each chemical reaction. In…

A: To determine the sign of ∆S syst and ∆Ssurr for the following reactions:

Q: Consider the following reaction at 298 K. C(graphite) + 2 Cl,(g) CCI, (1) AH = -139 kJ Calculate the…

A:

Q: A chemical reaction has a standard entropy change, ΔSo, of -287.8 J/(molK) and a standard enthalpy…

A: The given data you have - ΔSo = -287.8 J/K-mol ΔHo =  -138.1 kJ/mol

Q: 1. Rank the following from lowest to highest entropy. (a) CaH:s (1), CaHso(g), CaoHs (5) (b) Si (s),…

A: The correct answer about entropy is given below

Q: Which one of the following reactions is spontaneous at all temperatures? (hint: determine AS by…

A: Spontaneous reaction is the reaction which can occur naturally.  For these reactions, change in…

Q: AS° for the reaction shown is equal to -667.8 (J/mol-K). Use the information given in the table to…

A: Given,

Q: At high temperatures, ammonia decomposes to N2 and H2:2NH3 (g) ----> N2 (g) + 3H2 (g) ΔH for the…

A: Given information, ΔH for the reaction is positive and ΔS are positive. The given decomposition…

Q: 1) Calculate ΔH0rxn , ΔS0rxn and ΔG0rxn for the formation of ammonia gas from nitrogen gas and…

A: Here we are required to Gibbs free energy for the given reaction .

Q: Calculate the entropy change for dissolving HCl gas in water at 25 °C. Is the sign of ∆S° what you…

A: HCl is a polar gas. Entropy is the degree of randomness. Entrop of solid is lesser than liquid while…

Q: combustion reaction of propane (C3H8), determine ΔG° in kj mol-1 and predict if the reaction is…

A: Combustion equation of C3H8 - C3H8(g) + 5O2(g) ----> 3CO2(g) + 4H2O(g) ->Value may differ…

Q: Predict the sign of the entropy change, AS, for the following processes. Explain the reason for each…

A: Entropy is a thermodynamic quantity, it measures the randomness or disorderness of a molecule or…

Q: Which of the following combinations of signs for AH and AS will always result in a reaction being…

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…

Q: Consider the reaction 2Hg (l) + O2 (g) → 2HgO (s), for which ∆H°= -181.7 kJ/mol and ∆S°= -216.5…

A: Given data is, ∆H°= -181.7 kJ/mol ∆S°= -216.5 J/molK

Q: Predict the sign of the entropy change. Justify your answers.  a) 2 HCl (g) + Br2 (l) --> 2HBr…

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

Q: Calculate the entropy change when 3.00 mol benzene vaporizes reversibly at its normal boiling point…

A: Entropy- Entropy is a thermodynamic property. Entropy determines spontaneity of process.…

Q: 1. Consider the conversion of dichloroethane (C2H4Cl2) to Cl2 and ethylene (C2H4) gases: C2H4Cl2…

A: Q.1:  #(A):  The given equation is:  C2H4Cl2 (g)  → Cl2(g)  +  C2H4 (g) Here the sign of ∆So is…

Q: . Consider the following reaction at constant pressure. Use the information here to determine the…

A:

Q: 37. Without doing any calculations, determine the signs of AS and ASur for each chemical reaction.…

A:

Q: he balanced equation for the reaction of ammonia and oxygen is the following. 4 NH3(g) + 5 O2(g) →…

A:

Q: are the signs for ΔH° and ΔS°, for a reaction that is ONLY spontaneous at low temperatures:

A:

Q: 4.14)  A sample of neon (Ne) gas initially at 20 C and 1.0 atm is expanded from 1.2 L to 2.6 L and…

A: The temperature has to be converted from degree Celsius to Kelvin.

Q: For each of the following processes, determine the sign on the entropy and the best explanation for…

A:

Q: 2.6. The reaction COXg) H2(g)-> CO(g) + H20(g) is not spontaneous at room temperature but becomes…

A:

Q: Predict the sign of the entropy change, AS, for the following processes. Indicate the reason for…

A: The reactions given are,

Q: Predict the sign of ΔSₛᵧₛ for each process:(a) Alcohol evap-orates. (b) A solid explosive converts…

A: Entropy is a measure of a degree of randomness or a degree of disorder of molecules in a system.

Q: S a) Calculate the standard entropy change for the reaction involving carbon dioxide, r, methane,…

A:

Q: Consider a reaction that has a negative AH and a negative AS. Which of the following statements is…

A:

Q: Consider the following reaction at constant P. determine the value of deltaS of the surroundings at…

A: In this question, we want to determine the ∆Ssurr  You can see the details solution below.

Q: At constant pressure, what is the value of entropy change? o C, -dT T nRln-

A: Option (2) CpdT

Q: The following reactions take place at 25 °C and 1 atm. Calculate the entropy change for urrounding.…

A: The change in entropy of the surroundings is a measure of how much energy is being taken in or given…

Q: Ribozomes in your body create proteins by combing amino acids together. What are the signs of AG,…

A:

Q: Which of the following is incorrect about entropy of a substance? O Slig > 0 Sgas = 0 O Sliquid >…

A: Entropy: It is the measure of disorder/randomness of a system. Order of entropy: Gas> liquid >…

Q: Consider the following reaction.  Use the information here to determine the value of ΔSsurr at 355…

A:

Q: Calculate the standard entropy change for the reaction; CO2(g) + H20(1) → CH4(9) + O2(g) Note:…

A: The balanced chemical equation is,

Q: 12. Consider the oxidation of iron metal 4Fe +302g Astotal, Show that the reaction of spontaneous…

A: We need to find ∆Stotal . The sign of it will say that its spontaneous or non- spontaneous. Lets…

Q: Calculate the entropy change when graphite burns in sufficient supply of oxygen as shown in the…

A: Cgraphite(s) + O2(g) ------> CO2(g)

Q: For a reaction in which the entropy has decreased, what is the sign of ΔΔS? Select one: a. positive…

A: Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing…

Q: Consider the formation reaction of water, the hydrogen balloon reaction: 2 H,(g) + 0,(g) → 2 H,O(g)…

A: The reaction given is, => 2 H2 (g) + O2 (g) → 2 H2O (g)

Q: methanol is burned as fuel in some race cars. This makes it clear that the reaction is spontaneous…

A: From the second law of thermodynamics Entropy of the universe always increases. Or, the change in…

Q: or a particular reaction, AH = -93.8 kJ and AS = -156.1 J/K. Assuming these values change very…

A: Solution - According to the question - Given - ΔH° = -93.8kJ ΔS° = -156.1J / K = -156.1x 10^-3 kJ /K…

Q: Indicate if AS is negative, near zero or positive for the following processes. a reaction that is…

A: ∆G = ∆H - T ∆S For the spontaneous process ∆G  = -Ve

Q: Calculate entropy change of a sample of 20 g of ice when it melts at 0oC under pressure of 1 atm.…

A: Given, Mass of ice = 20 g Melting point = 0 degree Celsius Pressure = 1atm Enthalpy of fusion = 6.0…

Q: For the reaction depicted in the molecular scenes, X is redand Y is green.(a) Write a balanced…

A: Entropy explains the measure of randomness of a given system. For a reaction, the entropy would be…

Q: Determine the entropy change in each of the following processes: 4a. One mole of an ideal gas is…

A:

Q: For the synthesis of ammonia where AG' = -33.3 kJ/mole, determine whether the reaction is…

A: The reaction given is, => Given:   And ΔGo = -33.3 KJ/mol = -33300 J/mol…

Q: Predict which member of each of the following pairs has the greater standard entropy at 25°C: (a)…

A: Standard entropy is defined as the entropy of pure substance under a standard state. It is denoted…

Q: Which of the following has the lowest entropy? a. none - all of these have the same entropy b. H2O…

A: Entropy of the system is the measure of randomness and disorder in the system, this concept was…

Q: When two crystalline solids X and Y are mixed in a beaker at room temperature, a spontaneous…

A: Given: Temperature is decreased or low Reaction is spontaneous

Q: If AH = -70.0 kJ and AS = -0.300 kJ/K , the reaction is spontaneous below a certain temperature.…

A: Formula used ΔG = ΔH−TΔS for reaction to be spontaneous  ΔG > 0 for spontaneous reaction  ΔH =…

Q: Consider the reaction, O2(g) ⇌ 2 O(g) where ∆H° = 498 kJ/mol at 25°C.  At what temperatures (high or…

A: The given reaction is: O2(g) ⇌ 2 O(g) ∆S˚ is given by: ∆S°=S°products-S°reactants Since there are…