Zinc melts at 419.53 degrees celcius and 1 atm with an enthalpy of fusion of 7.32 kJ mol^-1. What is the entropy of fusion of zinc?
Zinc melts at 419.53 degrees celcius and 1 atm with an enthalpy of fusion of 7.32...
1. Ice melts at 0C° with an enthalpy of fusion = 6.01 kJ mol-1 . An ice cube with a mass of 20.0g is placed inside an incubator at 40.0C°. Determine the total entropy change (in J/K) of this system. 2. Calculate the total entropy change (in J/K) when 50.0 g of H2 gas initially in a tank at a pressure of 145 psi is withdrawn from the tank under a constant pressure of 23.0 psi at standard room temperature....
1. loe melts at 0C with an enthalpy of fusion -6.01 kJ mol". An ice cube with a mass of 20.0g is placed inside an incubator at 40.0C°. Determine the total entropy change (in J/K) of this system.
The enthalpy of fusion for benzene (C6H6, 78.0 g/mol) is 127.40 kJ/kg, and its melting point is 5.5°C. What is the entropy change when 1 mole of benzene melts at 5.5°C?
Ethanol melts at 159K and boils at 351K. The enthalpy of fusion is 5.02 kJ/mol, the enthalpy of vaporization is 35.56 kJ/mol, and the molar mass is 46.07 g/mol. The specific heats of solid ethanol is 0.97 J/g-K, for liquid ethanol it is 2.3 J/g-K, and for gaseous ethanol it is 1.9 J/g-K. How much heat (kJ) is needed to convert 215 g of liquid ethanol at 160 K to gaseous ethanol at 713 K?
The enthalpy of fusion of cadmium at its normal melting point of 321 °C is 6.11 kJ mol? What is the entropy of fusion of cadmium at this temperature? ASfus = J mol-K-1 The molar enthalpy of fusion of solid cadmium is 6.11 kJ mol-1, and the molar entropy of fusion is 10.3 JK+mol-1. (a) Calculate the Gibbs free energy change for the melting of 1.00 mol of cadmium at 622 K. (b) Calculate the Gibbs free energy change for...
The molar enthalpy of fusion of solid bismuth is 11.0 kJ mol-1, and the molar entropy of fusion is 20.2 J K-1 mol-1. (a) Calculate the Gibbs free energy change for the melting of 1.00 mol of bismuth at 575 K. kJ (b) Calculate the Gibbs free energy change for the conversion of 5.12 mol of solid bismuth to liquid bismuth at 575 K. kJ (c) Will bismuth melt spontaneously at 575 K? (d) At what temperature are solid and...
Ethanol (C2H5OH) melts at -114 ∘C and boils at 78 ∘C. The enthalpy of fusion of ethanol is 5.02 kJ/mol, and its enthalpy of vaporization is 38.56 kJ/mol. The specific heat of solid and liquid ethanol are 0.97 J/g⋅K are 2.3 J/g⋅K respectively. A) How much heat is required to convert 30.5 g of ethanol at 30 ∘C to the vapor phase at 78 ∘C? Q=______kJ B)How much heat is required to convert 30.5 g of ethanol at -167 ∘C...
The enthalpy of fusion for benzene (C6H6) is 9.937 kJ/mol, and the entropy change for fusion is 35.7 J/(mol K). What is the normal melting point for benzene in degree Celsius?
The vapor pressure of Y is 4.590 atm at 330K and 9.180 atm at 380K. What are the standard free energies of vaporization at the two temperatures? Hint: vaporization reaction is Y(I) = Y(g). AG330º = kJ/mol AG380º = kJ/mol Assume that the standard entropy and enthalpy of vaporization of Y are independent of temperature and determine their values ASO = J/(mol-K) AH = kJ/mol What is the normal boiling point of Y in degrees Celcius? t = Ос What...
The enthalpy of fusion for benzene is 9900 J/mol.K. What is the entropy change when 1.00 mol of benzene melts at 65oC? ΔS= _______ J