2. At a pressure of 1 bar the melting point of napthalene is 351.4 K while at 100 bar it is 354.9 K. If AV fus = 0.019...
Consider the data in the table. Compound Melting point (°C) Δ H fus (kJ/mol) Boiling point (°C) Δ H vap (kJ/mol) HF −83.11 4.577 19.54 25.18 HCl −114.3 1.991 −84.9 17.53 HBr −86.96 2.406 −67.0 19.27 HI −50.91 2.871 −35.38 21.16 Using the data in the table, calculate Δ S fus and Δ S vap for HBr . Δ S fus = J / ( K ⋅ mol) Δ S v a p = J / ( K ⋅ mol)...
The Δ?fus of platinum is 22.18 kJ⋅mol−1 , and its Δ?fus is 10.86 J⋅mol−1⋅K−1 . What is the melting point of platinum? ?=_____ ∘C
Fraudium has a normal boiling point of 59.2 K and a melting point (at 1 atm) of 52.1 K. Its critical temperature is 132.3 K and critical pressure is 40.3 atm. It has a triple point at 53.8 K and 0.50 atm. Sketch the phase diagram for fraudium and use it to answer the following questions: 1. What happens to the melting point of fraudium as the pressure is raised? Answer: The melting point decreases or The melting point increases...
The following information is given for ether, C2H30C2H5, at 1 atm: boiling point = 34.6 °C AH ap(34.6 °C) = 26.5 kJ/mol melting point =-116 °C AH fus(-116 °C) = 7.27 kJ/mol specific heat liquid = 2.32 J/gºC At a pressure of 1 atm, kJ of heat are needed to vaporize a 35.6 g sample of liquid ether at its normal boiling point of 34.6 °C.
Physical Chemistry, please show all work and explanations 1. At 1 bar the boiling point of potassium is 1046 K and AH = 79.87 kJ mol"! a) What is AS ap? b) What is the vapor pressure of liquid potassium at 673 K?
1. At 1 bar the boiling point of potassium is 1046 K and AH'ap = 79.87 kJ mol-?. a) What is AS ap? b) What is the vapor pressure of liquid potassium at 673 K?
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 bar for all species. For the reaction N2(g) + 3 H2(g) = 2 NH3(g) the standard change in Gibbs free energy is AGⓇ = -72.6 kJ/mol. What is AG for this reaction at 298 K when the partial pressures are PN, = 0.200 bar, Ph, = 0.150 bar, and PnHz = 0.800 bar. kJ AG = mol
At 100 K and a pressure of 1 bar, the molar volume of molecular oxygen O2 is experimentally measured to be 8.148 dm3. Use the molar volume of an ideal gas to determine the second virial coefficient B2v(100 K).
Entropy of naphthalene: Consider naphthalene C10H8 at atmospheric pressure. It is a solid with a melting point at 80.1 degrees Celsius and a boiling point at 218 degrees Celsius. The latent heat of fusion is 19,123 kJ / mol. The molar heat at constant pressure of solid naphthalene has a functional temperature dependence (in K) which is linear. Its value is 0 at T = 0 K and 188.41 J / mol-K at T = 317.15 K. The molar heat...
Consider the data in the table. Compound Melting point (°C) AHfus (kJ/mol) Boiling point (°C) AH ap (kJ/mol) HF -83.11 4.577 19.54 25.18 НСІ -114.3 1.991 -84.9 17.53 HBr - 86.96 2.406 -67.0 19.27 HI -50.91 2.871 -35.38 21.16 Using the data in the table, calculate ASfus and ASvap for HI. ASfus = J/(K.mol) AS vap = J/(K · mol) Determine the entropy change when 6.50 mol HI(1) boils at atmospheric pressure. AS = J/K