Naphthalene, C10H8, melts at 80.2 °C. If the vapor pressure of the liquid is 1.3 kPa at 85.8 °C and 5.3 kPa at 119.3 °C, use the Clausius-Clapeyron equation to calculate (i) the enthalpy of vaporization, (ii) the normal boiling point, and (iii) the entropy of vaporization at the boiling point.

Q: Estimate the normal boiling point of m-xylene using Trouton's rule [estimating that ΔS is…

A: •∆S=88 J/K.mol•∆Hvap=35.66 kJ/mol = 35660 J/mol•We have to normal boiling point (T)

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

A: The first reaction is written as follows: 6Cl2(g) + 2Fe2O3(s) →4FeCl3(s) + 3O2(g) Gibbs free energy…

Q: (b) Calculate the increase in entropy when 1.00 mol of a monatomic perfect gas with Cp,m = (5/2)R is…

A:

Q: Consider the reaction 6CO2(g) + 6H₂O(l) → C6H12O6 + 602(g) for which AH° = 2801 kJ and AS° = -259.0…

A: The given reaction is,6CO2(g) + 6H2O(l) C6H12O6 + 6O2(g)Given that:H° = 2.801×103 kJ S° = -259.0…

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: Calculate the magnitude of the difference between the Gibbs and the Helmholtz free energies at 25…

A: Interpretation -  To determine the magnitude of the difference between the Gibbs and the Helmholtz…

Q: For a chemical reaction the equilibrium constant was found to be K = 1.4 × 10–8 at T = 298.15 K, and…

A:

Q: Calculate the standard molar entropy of vaporization of water at 57.0 °C, given that its standard…

A: Given , Vaporisation of water .

Q: The enthalpy of vaporization of methanol is 35.27 kJ mol−1 at its normal boiling point of 64.1 °C.…

A: Enthalpy of vaporization (∆Hvap)  is defined as the minimum amount of energy that must have supplied…

Q: Calculate the change in entropy of 1 mol of nitrogen if it is heated from 300 K to 1000 K at a…

A: Moles of nitrogen = 1 mole T1 = 300 K T2 = 1000 K P = 1 atm

Q: Entropy, denoted by the symbol S, is the thermodynamic property describing the amount of molecular…

A: From given datas Initially from the given options related to third law of thermodynamics is given…

Q: A cube of ice of mass 100 g is put into a glass of water at just above 0 °c. When the ice melts,…

A: A cube of ice of mass 100 g is put into a glass of water just above 0˚C. ∆Hfus = 6.01 kJ/mol…

Q: How does the standard entropy of a substance depend on its molar mass? On its molecular complexity?

A: Entropy is a thermodynamic property, which is the measure of randomness of a system. Entropy of the…

Q: Molecular bromine is 24 per cent dissociated at 1600 K and 1.00 bar in the equilibrium Br2(g) = 2…

A:

Q: Hydrogen gas burns in an atmosphere of bromine gas to produce hydrogen bromide gas according to the…

A:

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: Determine the change in entropy (ASsys), for the expansion of 0.600 mole of an ideal gas from 2.00 L…

A: Moles of ideal gas (n) = 0.600 mol Intial volume (V1) = 2.00 L Final volume (V2) = 3.00 L