What is the change in entropy when one mole of calcite (CaCO3) decomposes at 298.2 K to CaO(s) and CO2(g)?

Q: methanol, CH3OH, vaporizes at 25°C is 35.4 kJ/mol. What is the entropy change (in J/K) when one mole…

A: Given,   □Hvap = 35.4 kJ/mol T = 25 °c = 298 K □S = □H/T   = 35.4 ×1000/298 = 118.79 J/K-mol

Q: The normal boiling point of Br21l2 is 58.8 °C, and its molar enthalpy of vaporization is ∆Hvap =…

A: (a) Entropy has to be given when Br2 (l) boils at its normal boiling point.

Q: Write the CAPITAL Letter of the correct answer. A if both statements are true  B if the 1st…

A: Given that, two statements are If the change in free energy, ΔG is negative, the reaction is…

Q: Which of the following processes are spontaneous: the dissolution of HCl(g) in water to form…

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

Q: What is the change in entropy when (a) 100 g of ice is melted at 0 °C, (b) 100 g of water is heated…

A: Entropy is used to determine the disorders or  randomness of the system.  The reaction is shown…

Q: What is the change in entropy when 0.125 mol of potassium freezes at 67.2°C (Hfus = 2.39 kJ/mol)?

A: Freezing point, standard enthalpy of fusion and standard entropy can be related by the equation…

Q: Hexafluorobenzene (C6F6) has an enthalpy of vaporization of 31.7 kJ/mol at its boiling point…

A: Given  Enthalpy of vaporization ( ∆Hvap) = 31.7 KJ/mole 1 KJ       = 1000 Joule  31.7 KJ  = 31.7 ×…

Q: Calcium metal reacts with acid in solution according to the following reaction: Ca(s) + 2H†(aq) →…

A: Given: Mass of Ca reacting = 0.1437 g. Mass of solution = 150.0 g. Initial temperature = 21.80 oC…

Q: aHPO, is 0.45 M. The K, for H,PO, is 6.2 x 10. D1.1 x 107 O 7.21 O 6.2 x 10 O 3.4 x 10

A: Solution - According to the question - Given -   = - log(6.2*10^-8) + log(0.25/0.45) =

Q: [Referenc A student determines the value of the equilibrium constant to be 2.41x1016 for the…

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Q: Calculate the change in entropy that occurs in the system when 45.8 g of diethyl ether (C4H10O)…

A:

Q: The normal boiling point of ethanol, C2H5OH, is 78.3 °C. Its molar enthalpy of vaporization is 38.56…

A: Molar heat of vaporisation of a substance is defined as the amount of heat absorbed by one mole of…

Q: Why does the entropy of a gas increase when it expands into a vacuum?

A: Entropy of a system is the measure of the randomness or dis-ordered ness of the system. The entropy…

Q: Define thermodynamically the entropy of a system

A: The second law of thermodynamics helps us to determine the direction in which energy can be…

Q: Consider the following reaction: C (s) + H2O (g) → CO (g) + H2 (g) Find out: a) The change of…

A: Since you have posted multiple questions, as per our company guidelines we are supposed to answer…

Q: Calculate the standard enthalpy change for the following reaction at 25 °C. MgCl, (s) + H,O(1)…

A:

Q: Diethyl ether is a liquid at normal temperature and pressure, and it boils at 35°C. Given that ΔH…

A:

Q: The process of iron being oxidized to iron(II) oxide (rust) is spontaneous. Which of these…

A: The true statement has to be given,

Q: A closed vessel of volume 2.1 L contains a mixture of neon and fluorine gas. The total pressure of…

A: Given,  Volume of the closed vessel = 2.1 L  Total pressure = 3.8 atm at 0°C  The mixture is heated…

Q: Calculate ΔGo and K for the reaction; NO + O3 → NO2 + O2 Is the size of the equilibrium constant…

A: The value of ΔG◦f for molecules at 298.15 K NO – 86.55 kJ/mol O3 – 163.2 kJ/ mol NO2 – 51.31 kJ/ mol…

Q: What will be the Gibbs free energy in KJ/mol if the entropy of the reaction (ΔS°rxn)  is 342.26…

A:

Q: 8. The following constant pressure process occurs spontaneously when the system, initially at a…

A: Spontaneous reactions are those reactions which do not require any external force for completion.…

Q: Calculate the change in entropy that occurs in the system when 45.0 g of acetone (C3HO) freezes at…

A: For this we have to use the formula: △S=△HfusionTWhere;△S= Change in entropy△Hfusion= Std. enthalpy…

Q: Determine the standard entropy of reaction for each of the following:  (sulfur is rhombic)   a)   2…

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Q: A chemist fills a reaction vessel with 6.88 atm hydrogen (H2) gas, 7.31 atm oxygen (O2) gas, and…

A: Given: Δf​G°,kJ/molP,atm​2H2(g)​0.006.88​+​O2(g)​0.007.31​⇌​2H2O(g)​−228.61.19​Step 1: Write the…

Q: Calculate the change in entropy when the pressure of a 55.0 g sample of oxygen gas is increased from…

A: Given- w= 55.0 g Molar mass of O2= 32g/mol P1 =625 mm Hg P2 = 1.24 atm Temperature = 250 C =…

Q: Use the thermodynamic data provided below to determine the ΔGº for the reaction. 1A(s) + 4B(g) ->…

A: 1A(s) + 4B(g) -> 1C(s) + 2D(g)ΔGº for the reaction = ?Given the following:ΔGf° = -96.0 kJ mol-1…