For a reaction for which ∆H = -142 kJ/mol and ∆S = -178 J/mol･K, which of the following statements is true? A) The reaction is spontaneous above 798 K. B) The reaction is spontaneous below 798 K. C) The reaction will never reach equilibrium. D) The reaction will never be spontaneous.

Q: The reaction which consume energy and change kinetic energy into chemical energy are said to be?

A: Photochemical reactions are those reactions which involved the consumption of light energy. Then the…

Q: a) Calculate AGxn for the reaction (AHrxn=572 kJ; ASrxn° = 179 J/K).

A: We know ∆Gorxn = ∆Hrxno - T∆Srxno . For a reaction to be spontaneous ∆G should be -ve . At…

Q: 15) Consider the following reaction at 25°C. If the pressure of H2 is 1.00 atm, the pressure of N2…

A:

Q: Consider the reaction A(g) --> B(s) + 2 C(g) AH = 95.7 kJ and AS = 142.2 J/K. Which statement is…

A:

Q: Consider the reaction:  H2S(g)+SO2(g)---> 3S(g)+2H2O(l) for which delta H is -233 kJ and delta S…

A: Given:

Q: (a) Calculate ASuniy for the reaction H,02(1) – H,O,(g) at 175.0°C. Enter your answer in the box…

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

Q: Consider this reaction: N2 (s) + 2 02 (g)→ 2NO2 (g) AS° = -121.77 J/K.mol; AH° = %3! 66.36 kJ/mol…

A: From the given question it is given that, ΔSo < 0 ΔH0 > 0

Q: Compute ΔGo at 200.0 oC for each of the following reactions, which are important in the chemistry of…

A: ∆Go = ∆Ho - T∆So As per our guidelines we can only solve first three sub-parts. Please resubmit the…

Q: Which reaction(s) will be spontaneous at all temperatures? Question 23 options: A) 4NH3(g) +…

A: The change in Gibbs free energy (∆G) is given by the relation ∆G = ∆H - T∆S  ∆H = change in enthalpy…

Q: A process increases the entropy of the system by 128 J/mol K and absorbs 54 kJ/mol of heat from the…

A: Given: Change in entropy (∆S) = 128 J/mol•K Absorbed heat=54 kJ/mol =54×103 J/mol    To determine…

Q: Determine the entropy change, in J/mol K, for the vaporization of 75.0 g of liquid O2 into gaseous…

A: Temperature at which liquid O2 converts into gaseous O2 is = - 183°C∆Hvaporization for O2 = 6.820…

Q: Predict the sign of ∆Srxn by checking a box of your choice on the right of each reaction.   Check…

A: Entropy is the measure of degree of randomness or disorder in the system. Higher the disorder in the…

Q: A) AG becomes less negative and the reaction becomes less spontaneous. B) AG becomes more negative…

A:

Q: 12. Consider the reaction H₂(g)+ S(s)→ H₂S(g) for which AH = -20 kJ and AS - +43] Kat 298.15 K.…

A: Given here a reaction with its enthalpy change and entropy change valuesat 298.15 K. We are asked to…

Q: The ∆H and ∆S for the decomposition of sulfur tetrabromide to sulfur and liquid bromine is +115 kJ…

A:

Q: Calculate ∆ Grxn° values for the following reactions at 298 K using the tabulated ∆ Gf° values. a)…

A: The chemical reactions given are  a) 2 Mg (s) + O2 (g) → 2MgO(s) −1138.6 kJ/mol b) 2 CH3OH (g) + 3…

Q: For a reaction for which AH = -64.2 kJ/mol and AS = +285 J/mol K, which of the following statements…

A: In thermodynamics, the spontaneity of a reaction is determined by the Gibbs free energy change (ΔG).…

Q: Calculate G°, for the reaction below at 25.0 °C rxn NH,CI(s) →HCI(g) + NH3(g) given G°f [NH4CI(s)] =…

A: We have given that  For reaction    NH4Cl(s) --------> HCl(g) + NH3(g)  We know that  ∆Grxn =…

Q: 17. For the reaction: A + B → C AH°= +300 kJ/mol and AS° = +200 J/K.mol. At what temperature will…

A: Given, ∆H° = 300kJ/mol ∆S° = 200J/K.mol

Q: For the reaction: F2 (g) → 2 F (g) Which is true about the enthalpy and entropy of reaction?…

A: The given reaction is the non-spontaneous process and it is endothermic reaction. F2 (g) → 2 F (g)

Q: Consider a process with ∆H = -89.8 kJ and ∆S = -151 J/K.  At what temperature will this process be…

A: The objective of the question is to find the temperature at which the process will be at…

Q: Calculate ∆Go at 25 ᴼC for the reaction of which ∆Ho = +210kJ; ∆So = 32.5 J/K

A: Given, ∆H° = +210 KJ  ∆S° = 32.5 J/K

Q: Find the the ∆H°rxn if ∆G°rxn is 420 kJ/mol and ∆S°rxn is -143 J/mol*k *refer to the photo attaced.

A: Since there are multiple questions, we are authorized to answer only the first one, that is, no. 1.…

Q: Calculate the free energy change for the following reaction at 25°C. Is the reaction spontaneous at…

A: Given: ΔHrxn = −1269.8 kJ ΔSrxn=−364.6 J/K T = 25°C = 298 K

Q: Calculate the ∆G in kJ/mol for a reaction at room temperature (~25.00°C) that has a Keq = 1000.0.…

A: We have to calculate the ∆G.

Q: 5) Consider the reaction CaCO:(s) → Ca0(s) + CO:(g) Calculate free energy change, AG° (in kJ), at 25…

A: The Gibbs free energy for a reaction is given by the expression:

Q: For the reaction of gaseous substances with increasing gaseous molecules (from reactant to product…

A: Given data    ∆H° = +150 KJ/mole and ∆S° = 171 J/K-mole.

Q: The Keq for a reaction is 985 at 358 ∘C. Calculate the value of ΔrG∘ in kJ/mol at this temperature.

A:

Q: 2) Given the following information, determine at what temperature the following reaction becomes…

A:

Q: Consider a reaction in the gas phase. The equilibrium constant K(T) is found to be independent of…

A: The question is based on the concept of chemical equilibrium. we know on increasing temperature,…

Q: The enthalpy and entropy changes for a reaction at 298 K are ∆H = -102 kJ and ∆S = -208 J/K. Which…

A: Given:  ∆H = -105 kJ;       ∆S = -208 J/K;       T = 298 K∆G = ∆H-T∆S∆G = -105 kJ - (298 K) (-0.208…

Q: Consider the following reaction at 25 °C: 5 SO₃(g) + 2 NH₃(g) → 2 NO(g) + 5 SO₂(g) + 3 H₂O(g) a)…

A: The standard enthalpy of the reaction is equal to the difference between the enthalpy of product and…

Q: Indicate whether each statement is true or false. Most spontaneous processes are reversible.

A: Given Indicate whether each statement is true or false. Most spontaneous processes are reversible.

Q: For a reaction in which ∆H = 76.2 kJ/mol and ∆S = 422 J/K mol, determine the temperature, in °C,…

A: We have the equation for Gibbs free energy as, ∆G = ∆H-T∆S Where, ∆G = change in Gibbs energy ∆H =…

Q: 2 (g) + 3H2 (g)  2NH3 (g) ΔrS = - 201 J K−1mol−1 ΔrH = - 99.3 kJ mol-1 a)    Calculate the ΔrG…

A: The balanced equation is: N2(g) + 3H2(g) ⇌ 2NH3(g)  ∆rS = - 201 J.mol-1.K-1 or - 0.201 kJ.mol-1.K-1…

Q: For a particular reaction at 128.2 °C, AG = 190.07 kJ/mol, and A.S = 658.97 J/(mol K). Calculate AG…

A: GIBBS FREE ENERGY: The change in the Gibbs free energy, when a reaction occurs at a standard…

Q: Calculate the ∆H and ∆G for the following reactions at 25 degrees Celsius: Al2O3 (s) + 2Fe (s) —>…

A: Delta G is the change in Gibb's free energy and delta H is the change in entropy. Delta G increases…

Q: Consider the following reaction at 25 °C: 5 SO₃(g) + 2 NH₃(g) → 2 NO(g) + 5 SO₂(g) + 3 H₂O(g) If ∆H°…

A:

Q: Consider the synthesis of sulphur trioxide from its elements at 25°C: S8(s) + 30za) 2503 (g)

A: Given reaction is :  Change in entropy of surrounding = ∆Ssurr = ?  Change in entropy of universe =…

Q: For the synthesis of nitrogen dioxide, NO2: 2N2(g) + O2(g) →2NO2(g) this reaction has the energy…

A: The equilibrium reaction taking place is given as, => N2 (g) + 2 O2 (g) -------> 2 NO2 (g)…

Q: Consider the general reaction equation below along with the following thermodynamic data: AH°ran-150…

A: The given data- ∆Hrxn°= -150 kJ/mol ∆Srxn°= -413 J/mol K To determine = The temperature at which…

Q: The temperature

A: we know the thermodynamic equation:                               ∆G°=∆H° - T∆S°…

Q: Using the data from Appendix IIb and the data provided, compute ∆G° for the following reaction: 3…

A: The given balanced chemical equation is 3 CO2 (g) + Si3N4 (s) → 3 SiO2 (s) + 2 N2 (g) + 3 C (s,…