Given that ΔHo(fusion) of water is 6025 J/mol, Cp,m(ice) = 37.7 J K–1 mol–1, and Cp,m(water,liquid) = 75.3 J K–1 mol–1, calculate ΔG (in J) for the freezing of 68 moles of water at 1 atm pressure and the constant temperature T = 7.6 °C.

Q: Is change in Gibbs free energy for the melting of ice greater or less than zero? A>0 C.-0 D. It…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: 3. The third law of thermodynamics can be combined with experimental data to provide an absolute…

A: Third law of thermodynamics combined with experimental data to determine absolute value of which…

Q: Hydrochloric acid reacts with sodium hydroxide to form sodium chloride and water. If the change in…

A: Given, HCl is react with NaOH to form NaCl and H2O .  The change in enthalpy is 56.13 KJ and the…

Q: HNO2(aq) + OH (aq) H20(1) + NO2 (aq) K= 4.5×1010 What is the standard change in Gibbs free energy at…

A: Given :- K = 4.5 × 1010                T = 25 °C                 R = 8.314 J/K.mol  To calculate :-…

Q: When a 5.00 g5.00 g sample of KClKCl is dissolved in water in a calorimeter that has a total heat…

A: Given : Mass of KCl dissolved = 5.00 g Total heat capacity of calorimeter = 4.12 KJ/K And the change…

Q: (Q79) The first step of glycolysis (the metabolic conversion of glucose to pyruvate) is the addition…

A: given, temperature = 38.6 degree Celcius Gibbs free energy = +13 kJ/mol

Q: When a 6.00 g6.00 g sample of KSCNKSCN is dissolved in water in a calorimeter that has a total heat…

A:

Q: Ammonia reacts with water in liquid ammonia solution according to the equation: NH3(g) + H2O ⇌ NH4+…

A: Spontaneity of a chemical reaction can be expressed in terms of Gibbs free energy change. Write the…

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: 2. A mixture consists of nitrogen (28 g/mol) and oxygen (32 g/mol). Decreasing the Gibbs free energy…

A:

Q: Look up the boiling point of benzene. Then calculate the change in Gibbs Free Energy for che…

A:

Q: Given ΔHrxn∘= −135 kJ, ΔS∘rxn= −263 J/K, and T= 550 K, will the reaction be spontaneous or…

A: Solution :     The change in Gibbs free energy calculated by the change in entropy, temperature, and…

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

A: The given values are: ∆rH°=+62.4 kJ=62400 J ∆rS° =+301 J K-1 For a reaction, the relation between…

Q: What is the entropy change (in J/K) of 85 g of steam at 100°C when it condenses to water at the same…

A: At phase transition, the entropy change is defined as the ratio of enthalpy change and temperature…

Q: The standard molar entropy of liquid water at 273.15 K is 65 J K−1 mol−1, and that of ice at the…

A: Given information: Standard molar entropy of water = 65 J/K.mol Standard molar entropy of ice = 43…

Q: A chemist was investigating the polymerisation of methanol for the synthesis of propene (C3H6) by…

A: The given data: The enthalpy change of the reaction( ∆Hr)  = -101.18 kJ/mol The entropy change of…

Q: Calculate the entropy of vaporization when the enthalpy of vaporization of propanol is 30.25 J.…

A: Given that, enthalpy of vaporization of propanol, ∆Hvap =30.25 J/mol This is also known as the heat…

Q: Calculate the standard free-energy change for the formation of NO(g) from N2(g) and 02(g) at 298 K:…

A: Given:

Q: What is the change in entropy when one mole of calcite (CaCO3) decomposes at 298.2 K to CaO(s) and…

A:

Q: The heat capacity, Cp, of liquid carbon disulfide is a relatively constant 78 J/(mol K). However,…

A: Solution In this question we use Third Law of Thermodynamics it tells us that as T → 0 K, S → 0.…

Q: At what temperature or range of temperatures will a reaction be spontaneous if the value of H° =…

A: ∆G = ∆H- T∆S If ∆G < O spontaneous reaction If ∆G > O  non spontaneous reaction

Q: What is the change in entropy for the isothermal transition of 1 mole of water to ice at a…

A: We know , the  change in entropy for the isothermal transition , ∆S =(Q/T) Where Q = latent heat of…

Q: Explain the reason that the conversion of liquid water to gaseous water has a positive change in…

A: Given statement is :  Explain the reason that the conversion of liquid water to gaseous water has…

Q: Observe the Figure 1.0 in which the influence of temperature to change in enthalpy, ∆H and entropy,…

A: Each chemical reaction is associated with a certain amount of energy. This energy can be liberated…

Q: If there are two chemical reactions: #1 with change in Gibbs free energy of -25 kJ/mol; and #2 with…

A: #2 since it has a higher change in Gibbs free energy.

Q: What thermodynamic quantity is used to determine whether a chemical reaction will proceed…

A: In the thermodynamic system we can determine which reaction is spontaneously or which reaction is…

Q: (Q78) The equilibrium constant (Keg) for the formation of dinitrogen tetroxide (N2O4) from nitrogen…

A:

Q: Define gibbs free energy in a reaction.

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

Q: From your knowledge of microstates and the structure of liquid water, explain the difference in…

A: Finding: Microstates To find Structure of liquid water

Q: What are the standard heats and free energies of formation and absolute entropies of water? Looking…

A: The temperature and pressure at standard conditions are 273.15 K and 1 atm . The relation between…

Q: What is the vapor pressure, in mmHg, of ethanol at 52.1 °C? What is the entropy of vaporization at…

A:

Q: What is the melting point of ice under 100 atm pressure, given the following information? The molar…

A: Interpretation-  To determine the melting point of ice under 100 atm pressure when all the…

Q: Combustion of glucose (C H,0) is the main source of energy for animal cells: CH1206(s) + 60,(g) 6…

A:

Q: What

A:

Q: Two moles of liquid water at 25 ° C is placed in a freezer having a temperature of – 10 ° C.…

A: H2O(l) 25°C → H2O(l) 0°C             ∆S1H2O(l) 0°C → H2O(s) 0°C              ∆S2H2O(s) 0°C → H2O(s)…

Q: Calculate ∆G° for a reaction for which ∆H° = 24.6 kJ and ∆S° = 132 J/K at 298 K. Is the reaction…

A:

Q: The Gibbs Free Energy Equation: AG change in free energy ΔΗ change in enthalpy TAS (temperature)…

A: Gibbs's free energy measures the spontaneity of the process. The Gibbs free change for a given…

Q: For a process that occurs at a constant temperature, does the change in Gibbs free energy depend on…

A: The Gibbs energy change can be defined by the expression as- ∆G=∆H−T∆S where ΔG: Gibbs Free Change…

Q: Calculate the change of the entropy of the system in J/K for the following phase transition:…

A: Given data -  Mass of methanol = 64.1 g  Molar mass of methanol = 32.04 gmol-1   Enthalpy of…

Q: Combustion of glucose (C6H12O6) is the main source of energy for animal cells: C6H12O6(s)+  6O2(g)→…

A: The given combustion reaction is - During the combustion of 1 mole of glucose, 2872 kJ energy is…

Q: 2. 22.5 g of Zn (Cp = 0.387 J/g°C) is heated to the boiling point of water, then added to 25 mL of…

A: Mass of zinc (m) = 22.5 g Specific heat capacity of zinc (s) = 0.387 J/goC Initial temperature of…

Q: Combustion of glucose (CH,1206) is the main source of energy for animal cells: CH1206(s) + 602(8) →…

A: Combustion of glucoseC6H12O6s + 6O2g →           6CO2g + 6H2Ol∆Grxn = -2872 kJGibbs energy for the…

Q: Why do exothermic processes tend to be spontaneous at low temperatures?

A: Why do exothermic processes tend to be spontaneous at low temperatures?

Q: Calculate the change in Gibbs free energy for each of the following sets of ΔH∘rxn , ΔS∘rxn , and T.…

A: ΔG∘ = ΔH∘ - TΔS∘

Q: A reaction has AH = -112 kJ and ASan = 354 J/K. At what temperature is the change in entropy for the…

A: The given data contains, ∆H°reaction=-112 kJ∆S°reaction=354 J/K

Q: When a 6.00 g6.00 g sample of KClKCl is dissolved in water in a calorimeter that has a total heat…

A: Given, mass of KCl = 6.0 g Total heat capacity = 4.47 kJ/K ∆T =0.310 K Molar heat of solution is…

Q: Suppose some cells are assembling a certain protein made of 79 amino acids. Calculate the minimum…

A: The given reaction is,

Q: 2.0 mol of hydrogen gas and 3.0 mol of argon gas are mixed at the same pressure and temperature,…

A: To determine the change in entropy and change in molar Gibbs free energy at 298.15K when 2.0 mol of…

Q: Explain which reaction is non-spontaneous and justify your answer in terms of change in enthalpy and…

A: Given : reaction