A certain liquid has a vapor pressure of 92.0 Torr92.0 Torr at 23.0 ∘C23.0 ∘C and 335.0 Torr335.0 Torr at 45.0 ∘C.45.0 ∘C. Calculate the value of Δ?∘vapΔHvap∘ for this liquid.

Q: Given the enthalpies of formation for ethanol in the liquid and gaseous states are -277.7 and -235.1…

A: Formula used :     Tb = delta H/ delta S

Q: thermodynamic

A: Reaction is in at equilibrium  I2(s) <-----> I2(g)  ∆S°rxn = [ ∆S°(I2(g)) ] - [ ∆S°(I2(s)) ]…

Q: 6) What are signs on AH, AS and AG for ice melting at room temperature? You should not do a…

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Q: Which of the following processes are spontaneous: (a) the melting of ice cubes at -10 °C and 1 atm…

A: A spontaneous reaction is defined as a reaction that takes place on its own and no external energy…

Q: Use Trouton’s rule to predict the enthalpy of vaporization of cyclohexane from its normal boiling…

A: Trouton's rule states that, for various liquids the entropy of vaporization is same i.e equivalent…

Q: Which of the following are spontaneous processes? 1. Ice melting at 1atm and 298 K (assume only ice…

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Q: Use Trouton’s rule to predict the enthalpy of vaporization of benzene from its normal boiling point,…

A: Trouton rule tells that most of the liquids have entropy of vaporization approximately at 85 J…

Q: Could I please have help understanding how to think when asked to predict the signs of ∆Gº, ∆Hº, and…

A: The reaction enthalpy ∆Ho depends on the energy absorbed or released during the course of a given…

Q: Would each of the following changes increase, decrease, orhave no effect on the number of…

A: Given changes, (a) increase in temperature (b) decrease in volume (c) change of state from liquid to…

Q: 8-Two moles of an ideal gas expanded isothermally and reversibly from 11 to 10 L at 300 K. What is…

A: We have to determine the enthalpy change for isothermal and reversal process.

Q: Which of the following is a quantitative measure of disorder? a.Free Energy B.Enthalpy C.Entropy…

A: Which of the following is a quantitative measure of disorder?

Q: When 8.95 moles of a liquid with a heat of vaporizations of 31.8 k) mol-1 is vaporized at 280 K and…

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Q: 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)…

A: The Gibbs free energy is defined as the maximum work which can be produced by a system at constant…

Q: Consider the following liquid-vapor equilibrium for chloroform: CHCl3(l) ⇌  CHCl3(g), for which DHo…

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Q: Which of the following species will have the greatest magnitude of change in Gibbs free energy due…

A: Gibbs free energy is the energy available for useful work to be done. Now as its given in the…

Q: The normal boiling point of naphthalene, C10H8, is 218 °C. What is the its enthalpy of vaporization…

A: According to Trouton : ∆H/T = 88 J.K^-1.mol^-1 ....(1) Here, Tb = boiling temperature in K = 218°C =…

Q: Based on the following thermodynamic data, calculate the boiling point of ethanol in degrees…

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Q: For benzene, the AH° of vaporization is 30.72 kJ/mol and the AS° of vaporization is 86.97 J/ mol·K.…

A: Standard Gibbs Free energy change of the any reaction is given by the expression, ∆Go=∆Ho-T∆So

Q: Adding nitric acid to water is quite exothermic. Calculate the temperature change (AT) when 100.0 mL…

A: Assuming the density of concentrated HNO3 is same as that of water and its addition doesn't add a…

Q: Are the values of ΔHvap and ΔSvap for boiling water going to be positive or negative? Explain if…

A: Given statement is :  Are the values of ΔHvap and ΔSvap for boiling water going to be positive or…

Q: Which of the following processes are exothermic?N2 (g) → 2N (g)H2O (l) → H2O (s)Cl2 (g) → 2Cl (g)2H2…

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Q: How long would it take for 1.50 molmol of water at 100.0 ∘C∘C to be converted completely into steam…

A: Enthalpy of vaporization of water (delta Hvap) = 40650 J/mol Given,  Moles of water heated = 1.50…

Q: For benzene, the AH° of vaporization is 30.72 kJ/mol and the AS° of vaporization is 86.97 J/ mol ·…

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…

Q: Use data from Appendix C to estimate the normal boiling point of CCl4.

A: Since the Appendix C has not been provided, the question will be solved, considering the standard…

Q: 3. The normal boiling point of SO, is -10.1°C and its standard enthalpy of vaporization is 24.92…

A: Boiling point = -10.1°C = 262.9 K  Enthalpy of vapourization (∆H) = 24.92 KJ/mole

Q: A common name for methanol (CH3OH)is wood alcohol. The normal boiling point of methanol is 64.7 °C…

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Q: Which of the following species will have the greatest magnitude of change in Gibbs free energy due…

A: The Gibbs free energy is the energy that is present in the system and can be tapped for doing work…

Q: phorus oxychloride (POCl3) is a chlorinating agent that is frequently used in organic chemistry

A: We have to tell whether reaction is spontaneous

Q: The Gibbs free energy decreases when: I. A molecule breaks into two or more smaller molecules. II. A…

A: Here option e is correct  A) when a molecule break into smaller pieces than entropy increases and…

Q: Calculate the enthalpy of vaporization for the phase change from gaseous methanol to liquid…

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Q: Using standard enthalpies of formation and standard molar entropies, determine the normal boiling…

A: The equation for the vaporization of water – CH3OH l ↔CH3OH g At equillibrium, ∆G∘ =0∆G∘ =∆H∘ -T∆S∘…

Q: Calculate AG° at 599 K for H20(g) + 1/2 02(g) = H202(g) using the following data: H2(g) +02(g) 5…

A: In the given question equilibrium constant of the reaction is determined with the help of…

Q: The standard enthalpy of sublimation of iodine, I2, is 61.1 kJ mol-1 at 25 °c. Calculate the…

A: Enthalpy of sublimation: Enthalpy change accompanied by one mole of solid substance sublimes.…

Q: The normal boiling point of Br2(l)Br2(l) is 58.8 ∘C∘C, and its molar enthalpy of vaporization is…

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Q: The following information is given for benzene, C6H6, at 1atm: AHvap(80.1 °C) = 30.7 kJ/mol boiling…

A:

Q: Determine DS for the phase change of 1.45 moles of water from solid to liquid at 0°C. (DH = 6.01…

A: Number of moles = 1.45 mol. Temperature = 0°C   i.e 273 k  ∆H = 6.01 KJ/mol    ....or  because 1KJ =…

Q: Consider the reaction: 2A(g) + B(g) → 2C(g) If ΔG° = 50.0 kJ/mol at T = 25°C and PA = PB = 1 atm and…

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Q: Consider the physical process at 1 atm pressure: Br2 (l) -->  Br2 (g)   where  ΔHo = 31.0 kJ/mol and…

A: Br2 (l) -->  Br2 (g) ΔHo = 31.0 kJ/mol = 31000 J/mol ΔS = 93.0 J mol-1 K-1

Q: For benzene, the AH° of vaporization is 30.72 kJ/mol and the AS° of vaporization is 86.97 J/mol·K.…

A: Given : ΔHo = 30.72 KJ/mol ΔSo = 86.97 J/mol.K And T = temperature = 214.0 K

Q: Why do exothermic processes tend to be spontaneous at lowtemperatures? Why does their tendency

A: A process can be defined as spontaneous or not based on free energy change ΔG.  If ΔG is negative,…

Q: A cylinder in a car engine takes 4.50 x 10-2m3air into the chamber at 303.15 Kand at atmospheric…

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Q: The following information is given for aluminum at latm: boiling point = 2467 °C AHvap(2467 °C) =…

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Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol K. How much heat in cal is…

A: Given :-  Molar heat capacity for CO = 6.97 cal.mol-1.K-1  Amount of CO = 0.58 g  Initial…

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: For a certain system, q = –850 J and the volume changes from 16.37 L to 370. cm3 at a constant…

A: i) Since the value of q is given -ve Hence it means that the system is losing heat to the…

Q: What is the expected sign of AS for the following changes? condensation of steam to liquid water…

A: Intermolecular forces refer to the type of interactions which are present in between atoms or…

Q: Carbon monoxide, a toxic product from the incomplete combustion of fossil fuels, reacts with water…

A: Spontaneity of a reaction can be predicted by calculating the value of Gibbs free energy change. For…

Q: Chemical Thermodynamics Calculate the ASfor the vaporization of water at 100°C. 40.7 kJ mol 1

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Q: Predict the sign of q for the process of water vapor condensation. 0 >b q >0 q =D0 Predict the sign…

A: The question is based on thermodynamics. and focus on the ways of exchange of energy between system…