6. The vapour pressure of dichloromethane at 24.1°C is 53.3 kPa and its enthalpy of vaporization...
E4B.13(a) Naphthalene, C, H, melts at 80.2°C. If the vapour pressure of liquid is 1.3 kPa at 85.8 °C and 5.3 kPa at 119.3°C, use the Clausius-Ch equation to calculate (i) the enthalpy of vaporization, (ii) the normal point, and (iii) the entropy of vaporization at the boiling point. lausius-Clapeyror (11) the normal boiling
1) The enthalpy of vaporization for a liquid is found to be 14.4 kJ mol- at 180 K, its normal boiling point. The molar volumes of the liquid and the vapour at the boiling point are are 115 mL mol-1, and 14.5 L mol-1, respectively. a) Use the Clapeyron equation to estimage the temperature dependence of the vapour pressure (dp/dT) at the normal boiling point. b) Use the Clausius-Clapeyron equation to estimate dp/dT. c) Does the Clausius-Clapeyron equation overestimate or...
The normal molar vaporization enthalpy (∆H_Vap ^ °) of methanol is worth 37.4 kJmol ^ (- 1), and its normal molar vaporization entropy (∆S_Vap ^ °) 110.9 JK ^ (- 1) mol ^ (- 1). Calculate: The vapor pressure of methanol, at 298 K (R = 8.3144 J K -1 mol -1). The approximate normal boiling point. The boiling point for an external pressure of 0.1 atm. Applying the Clausius-Clapeyron equation, estimate the cooking temperature in a pressure cooker whose...
a substance has an enthalpy of vaporization of 8.21 kcal/mol. If the vapor pressure is 23.87kPa at 19.5 degrees C, what is the temperature when the vapor pressure is 87.31 kPa?
P4B.9 The vapour pressure, p, of nitric acid varies with temperature as follows: 0/°C 0 20 40 50 70 80 90 100 p/kPa 1.92 6.38 17.7 27.7 62.3 89.3 124.9 170.9 Determine (a) the normal boiling point and (b) the enthalpy of vaporization of nitric acid.
Estimate the saturation pressure, in kPa, of a substance at 100 °C, given that the normal boiling point is 70 °C and the enthalpy of vaporization is 30 kJ/mol.
The vapor pressure of trichloromethane (chloroform) is 41.5 Torr at -7.6 ∘C. Its enthalpy of vaporization is 29.2 kJ⋅mol−1. Calculate its normal boiling point. Express your answer using three significant figures.
11) The enthalpy of vaporization of hydrogen sulfide, H2S, at its boiling point under standard pressure, -60.4°C, is 18.67 kJ/mol. What is the molar entropy of vaporization of H2S at that temperature (J/K mol)? (A) 0.088 (B) 87.7 (C) 269 (D) -87.7 (E) 18.7
Question 2 The vapour pressure, p, of nitric acid varies with temperature as follows: Temperature / °C Vapour pressure / Torr 0 14.4 20 47.9 40 133 50 208 70 467 80 90 670 937 1282 100 Determine the following graphically: (a) the enthalpy of vaporization of nitric acid (b) the normal boiling point of nitric acid
6.34. The vapor pressure of benzene at 40.0°C is 0.241 atm. If the enthalpy of vaporization of C. Ha is 33.9 kJ/mol, estimate the normal boiling point of benzene.