The enthalpy of the fusion of metal Cesium is 13.5 kJ/mol at the melting point of 28.5 oC. Calculate the entropy change for Cesium going from solid to liquor.

Q: Describe if the following reaction is spontaneous or non-spontaneous based on enthalpy, entropy and…

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Q: There are two isomeric hydrocarbons with formula C,H10, butane and isobutane, which we denote here B…

A: (a) The equilibrium chemical reaction between butane and isobutane is shown below, The change in…

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: [1] Given: CH,(g) + H2O(g) CO(g) + 3H2(g). AH° for the reaction is +206.1 kJ/mol, while AS° is +215…

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Q: The answer to the question in the picture is 217 kJ.  For the reaction given in Part A,…

A: Calculate Gibbs free energy of the given reactions---

Q: Calculate the standard free-energy change for the formation of NO(g) from N21g2 and O21g2 at 298 K:…

A: In thermodynamics, discussion of various energies and various processes take place. Common types of…

Q: Predict whether the entropy change of the system in N2 (g, 10 atm) —> N2 (g, 1atm) is positive or…

A: The entropy of a substance increases with its molecular weight and complexity and with temperature.…

Q: 14. At what temperatures will a reaction be spontaneous if ΔrH° = +62.4 kJ and ΔrS° = +301 J/K?

A: For, the reaction to be spontaneous, the free energy is negative. The standard thermodynamic data at…

Q: Calculate the standard free energy for the combustion of 1 mole of ethylene, C₂H₄(g), in the gas…

A: The reaction for the combustion of ethylene in gas phase – C2H4g +3O2 g →2CO2g +2H2Og

Q: 2. Consider the following reaction at 298 K: N2 04(8) = 2NO2(g) Kp = 0.142 What is the standard free…

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Q: Does the entropy of a star increase or decrease as it radiates? Does the entropy of the space into…

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Q: 2. What is "Gibb’s Free Energy"? How is it related to the Equilibrium Constant K and temperature T?

A: Gibbs Free Energy is a thermodynamic quantity. It is the amount of energy associated with a chemical…

Q: Above what temperature (in ºC) does the reaction with H' of 192 kJ/mol and S’ of 622 J/mol·K become…

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Q: Consider the following reaction at 25 °C: 3 NiO(s) + 2 NH₃(g) → 3 Ni(s) + N₂(g) + 3 H₂O(g) a.Given…

A: Since you have posted question with multiple subparts as per guidelines we can not answer more than…

Q: A. Calculate the standard enthalpy change of the reaction in kJ. Is the process endothermic or…

A: ∆H rxn = ∆H product - ∆H reactant ∆S rxn = ∆S product - ∆S reactat ∆G rxn = ∆H rxn - T∆S rxn

Q: Is the formation of ozone [O3 (g)] from oxygen [O₂ (g)] spontaneous at room temperature under…

A: A reaction is spontaneous when ∆G° for the reaction is negative and if ∆G° is positive for reaction…

Q: 8. A reaction has AH° = 100 kJ/mol and AS°=250 J/mol-K. Is the reaction spontaneous at room…

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Q: Which substance would have the greatest standard molar entropy? N2(g) NO2(g)

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Q: Consider the following reaction; A(g) + B(g) → c(s) + D(g); AHP = 159.1 kJ; AG = 164.1kJ %3D at 298…

A: The reaction taking place is given as, => A (g) + B (g) -----> C (s) + D (g)            ΔHo =…

Q: Given the balanced reaction A + 3B = 2C, calculate the entropy change of the universe if: T = 25…

A: Given, A + 3B = 2C Temperature (T) = 25°C = (25 + 273.15) K = 298.15 K A and B are pure gases.…

Q: A reaction with ∆S > 0 is spontaneous at high temperature. Under what conditions would it also be…

A: Reaction is spontaneous with ∆S > 0 at high temperature.  The conditions at which reaction is…

Q: If the Delta*H = 135kJ / m * ol and AS 92 J/K mol, at what temperature does this reaction become…

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Q: 1. Consider the reaction at 25 degrees Celsius 2NO3 (aa) + 8H*taa) + 3Cu(s) → 3Cu2"(aq) + 2NO(9) +…

A: a) The given reaction is, 2NO3-(aq) + 8H+(aq) + 3Cu(s) ---> 3Cu2+(aq) + 2NO(g) + 4H2O(l)…

Q: spontaneous

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Q: [1] Given: CH,(g) + H2O(g) CO(g) + 3H2(g). AH° for the reaction is +206.1 kJ/mol, while AS° is +215…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: When temperature increases from 15.0 °C to + 15.0 °C, the thermodynamic equilibrium constant for the…

A: The solution is as follows :

Q: The standard free energy of formation of ammonia is -16.5 kJ/mol. N2 (g) + 3H, (g) = 2NH,(g) What is…

A: Formula  ∆Gr° = -2.303RT log K  -16.5 x 103 J = -2.303 x 8.314 x 365 log K log K = 2.36 = log ( 2.30…

Q: 1. Predict whether the following processes are spontaneous, are spontaneous in the reverse or are in…

A: Spontaneous process is the process which takes its own.i.e process which doesn't required any…

Q: calculate the free energy change (in kJ) of a reaction at 466.4K that has an entropy change of…

A: Given,    ΔS = 692.2 J/K   = 0.6922 kJ/K   ΔH = - 4.24 kJ    T = 466.4 K Free energy change ( ΔG )…

Q: Consider the reaction:  4 A (g) ------  2 B (s) +  3 C (g) + 20.5 kJ,    at what…

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Q: The equilibrium constant for a chemical reaction is Kc = 902 at 25°C. What is the standard free…

A: We know that, the standard free energy change of the reaction is related to the equilibrium constant…

Q: Under what conditions is N0glg)7 NOG)+NO,g spontaneous?

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Q: the following reaction is endothermic: 2SO3(g)->2SO2(g) +O2(g). the reaction is a) spontaneous at…

A: For a process that occurs at constant temperature and pressure, spontaneity can be determined…

Q: Predict the change in entropy of the following reaction. NH2 I H2

A: Entropy is a measure of the randomness of the system. The entropy change in a chemical reaction can…

Q: Balance the reaction and calculate the standard entropy change. K(o) + Cl2i@) → KCIco)

A: We have to balance the given reaction

Q: What is the standard change in free energy (in kJ) at 127°C for the reaction below, given ∆H° = -312…

A: given data are- ∆H° = -312 kJ  ∆S° = +66.7 J/K temperature = T = 127oC = 127 + 273 = 400 K free…

Q: Consider the reaction (6)0 + (6)00°H CO,(g) + H,O() for which AH° = -563.3 kJ and AS =-140.5 J/K at…

A: Given H2CO(g)   +   O2(g)                    →               CO2(g)        +   H2O(l)    ∆H° =…

Q: Calculate the enthalpy of reaction (AH) in kJ for the following hypothetical reaction: S+T P+Q…

A: If we add two or more reactions then their enthalpies are also added. see the solution

Q: Consider the following reaction; A(g) + B(g)→ c(s) + D(g); AH = -164.1 kJ; AG = 159.1 kJ at 298 K…

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Q: When temperature increases from – 15.0 °C to + 15.0 °C, the thermodynamic equilibrium constant for…

A: We from the known formula, we can substitute the ratio of the equilibrium constants at T1 and T2…

Q: At room temperature, the entropy of the halogens increases from I2 to Br2 to Cl2. Explain.

A: Entropy is defined as the measure of randomness of a system. Molecules which are in the gaseous…

Q: The enthalpy change when liquid methanol , CH 3 OH , vaporizes at 25 degrees * C is 37.4kJ / m * o *…

A: Given : Enthalpy of vaporisation i.e ΔH = 37.4 KJ/mol = 37400 J/mol                        (Since 1…

Q: Which of the following processes are spontaneous.  Cold water warming to room temperature Sorting…

A: A process that occurs by itself without the help of any external agency is called a spontaneous…

Q: Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Refer to the AG…

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Q: 2. A certain reaction measured at 298 K has AH° = +8.7 kJ and AS° = +22.5 J/mol.K. Calculate the…

A: Given : ΔHo = +8.7 KJ = 8700 J…

Q: For the following reaction, H2(g) + I2(g) ⇌ 2 HI(g), Kp = 44 at 25.0 o C. Calculate the value of Kc

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Q: A certain reaction is spontaneous at 65 ° C. If the enthalpy change for the reaction is  15…

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Q: For the reaction CO (g) + H,0 «) →C 208) ΔΗ. a) + H. 2(8) · calculate the following reaction's…

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Q: At what temperatures will a reaction be spontaneous if AH = +158 kJ and AS = +411 %3D %3D J/K? O The…

A: Given ΔH = 158 kJ = 158000 J ΔS =  411 J/K

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.