Hexane and heptane are miscible with eachother in all proportions. In making a solution of them, isthe entropy of the system increased, decreased, or close tozero, compared to the separate pure liquids?

Q: Calculate the The molar enthalpy of neutralization AHneut given the following information. CHci soln…

A: qcal = qNaOH + qHCl + n × ΔHneut On substituting the values into it, we get ; 43.7 J = 450 J + 390 J…

Q: From the solutions above which ones are exothermic and which oness are endothermic? And what are the…

A: Exothermic reactions are reactions or processes that release energy, usually in the form of heat,…

Q: Does the chemical potential of any constituent of an ideal solution depend on the ______ of the…

A: Chemical potential: In thermodynamics, the chemical potential of a species is the energy that can be…

Q: The U.S. Food and Drug Administration lists dichloromethane (CH₂Cl₂) and carbon tetrachloride (CC14)…

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Q: The U.S. Food and Drug Administration lists dichloromethane (CH₂Cl₂) and carbon tetrachloride (CCl4)…

A: Given that, a mixture contains 1.50 moles of CH2Cl2 and 1.00 mol of CCl4. So, the number of moles of…

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A: Let us take two salts NaCl and CaCl2. When NaCl is added to water, the temperature goes down whereas…

Q: Based on the student's observation, calculate the dissolution enthalpy of BaCl,(s) in kJ/mol.

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Q: sThe enthalpy of solution for solid KClO3 is 41.4 kj/mol If certain amount of solid potassium…

A: The solution temperature decreases when KClO3 dissolves in water.

Q: One of the most extensively studied reactions of industrial chemistry is the synthesis of ammonia,…

A: Gibbs energy- Where, R=Gas constant T= temperature K=equilibrium constant

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---

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Q: 0.9% (w/v) sodium chloride (MW = 58.44 g/mol) solution (Normal Saline Solution) has an osmotic…

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Q: a. What is the mathematical formula summarizing the Gibb's Phase Rule? Define the meaning of the…

A: (a) Answer -  Gibbs Phase Rule - The Gibbs phase rule p+n=c+1 gives the relationship between the…

Q: A mixture consists of 78,1 g benzene (C6H6) and 92,1 g toluene (C7H8). Both substances are volatile,…

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Q: Two phases "a" and "b"  of a pure substance are in equilibrium at some temperature and pressure.…

A: For any equilibrium to exist, there chemical potentials should be always equal. Hence ans will be…

Q: The molar heat of vaporization of some unknown compound (X) at its normal boiling point 4.3 K is 7…

A: To calculate the change in entropy, the formula used is as follows: ∆S=∆HvapT where T is the boiling…

Q: The point on a phase diagram is where three phases of matter exist in equilibrium. The point is…

A: Given:

Q: Question is attached

A: Vapor pressure is the pressure caused by the evaporation of liquids. If the vapour pressure of a…

Q: Why do we need to use six separate pipets for known solutions and a different six separate pipets…

A: Given : we need to use six separate pipets for 6 different known solutions and a different six…

Q: What proportions of hexane and heptane should be mixed (i) by mole fraction, (ii) by mass in order…

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Q: 5) Derive expressions for 1/dhkl and cos p for orthorhombic crystals.

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Q: Two liquids A and B mix to form an ideal solution. Consider A to be the solvent (majority component)…

A: The Gibbs free energy is a thermodynamic quantity which is used to calculate the maximum amount of…

Q: Calculate for the final boiling point of a 2.70 M aqueous solution of KBr. The boiling point…

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Q: 5.12) Which of the following has a higher chemical potential? If neither, answer "same." (a) H2O(s)…

A: In physical terms, chemical potential is the ability of a chemical species to perform physical work…

Q: Suppose you have two nonpolar molecules that are liquids at room temperature: hexane (C6H14) and…

A: Ideal solution: Those solution in which components of the solution have same type of interaction as…

Q: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.85 g…

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Q: In a typical cold pack (used for sports injuries), a salt such as ammonium nitrate is kept in a…

A: Dissolution of ammonium nitrate in water is given by, NH4NO3(s)→H2O(l) NH4+(aq)+NO3-(aq)   ∆H=+25.09…

Q: Determine the degrees of freedom for the following systems: a) A mixture of H29) and N2(9) b) A…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Which of the following is true for water at 373.15K and 1 bar of pressure? The Gibbs energy of the…

A: Given: water at 373.15K and 1 bar of pressure.

Q: Estimate whether theentropy of the system increases or decreases during eachprocess: (a)…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Question attached

A: The equation relating Gibb's free energy(∆G) and enthalpy (∆H) is; ∆G=∆H-T∆ST=Temperature∆S=change…

Q: 6. Derive the following relationship that describes the variation of calcium concentration in water,…

A: To derive the given relation:

Q: A solution of ethanol and n-propanol behaves ideally. Calculate the chemical potential of ethanol in…

A: Given:  Mole function of ethanol = 0.40   The boiling point of solution = 78.3°C…

Q: A mixture consists of 78,1 g benzene (C6H6) and 92,1 g toluene (C7H8). Both substances are volatile,…

A: Boiling point is defined as the temperature at which the vapor pressure of the liquid becomes equal…

Q: 6. The variation of vapor pressure of diethyl ether with temperature at its normal boiling…

A: For                  liquid ====> vapor  The rate of vapor pressure change is given by  ∆P∆T=…

Q: If the standard enthalpy change and standard entropy change for the dissolution of borax at 298 K is…

A: Gibb's free energy is used to define the spontaneity of a reaction. A positive Gibb's free energy…

Q: Question attached

A: Given data: Temperature (T)=37°C The change in the enthalpy (∆H)= -125 k J mol-1 The change in the…

Q: relative to the unmixed gases of a) a mixture of 10 mol of A and 10 mol of B; b) a mixture of 10 mol…

A: Given details: The temperature of pure gas A and B = 25°C  Pressure…

Q: 3.12 The standard molar entropies of water ice, liquid, and vapor are 37.99, 69.91, and 188.83 J K-'…

A: When there is study of different phases of a component, it will come under the study of phase…

Q: The molality (moles per kg of water) of a 1.000 M solution of silver nitrate (FW 169.9 amu; AgNO3)…

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Q: Non-ideal solutions exhibit either positive or negative deviations from Raoult’s law. What are these…

A: Raoult's law - It states that the partial vapor pressure of solvent in a solution is equal to vapor…

Q: Could you help me with #9? I included a picture of the phase diagram that was given.

A: From the given phase diagram for a substance, curve AB represents the equilibrium between the liquid…

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A: The equation that relates equilibrium constant and Gibb's free energy is; ∆Go=-RT ln…

Q: You add some of the white crystals to a small test tube filled with water. The water in the test…

A: Here we have to say the change in Gibbs free energy for above dissolution process of some crystals-

Q: At 25 °C the vapour pressure of ethanol, C2H5OH, is 0.08 atm. What is vapour pressure of a solution…

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