

3. (5 pts) Carbon tetrachloride has a vapor pressure of 11.3 torr at 255 K, and...
(4) Carbon tetrachloride (CC14) has a vapor pressure of 212.75 torr at 40.00 °C and 836.00 torr at 80.00 °C. What would be the heat of vaporization of CCl4 in kJ/mol?
1. Carbon tetrachloride, CCl4, has a vapor pressure of 213 torr at 40 °C and 836 torr at 80 °C. What is the normal boiling point of CCl4? 2. Pressure cookers allow food to cook faster because the higher pressure inside the pressure cooker increases the boiling temperature of water. A particular pressure cooker has a safety valve that is set to vent steam if the pressure exceeds 3.4 atm. What is the approximate maximum temperature that can be reached...
12/ A solution of carbon tetrachloride in benzene, CoH6, at 20°C has a total vapor pressure of . 78.50 mmHg. (Assume that this solution i Ideal.) The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm, the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm. What percentage of the volume of this solution is due to carbon tetrachloride? (Hint: assume that you have 1.000 L...
A liquid has a vapor pressure of 8.36 torr at 319 K. Its enthalpy of vaporization is 33.4 kJ/mol. What is its normal boiling point, in K? Give your answer to the nearest 0.1 K. Store intermediate results in your calculator or write them down with at least four significant figures!
The melting point of potassium is 62.2 oC. Molten potassium has a vapor pressure of 10.00 torr at 433oC and 400 torr at 708 oC. R=8.314 J/(K-mol). How much heat is needed to vaporize 28.5 g of the potassium liquid? What is the heat of vaporization of liquid potassium?
3 pts Question 13 What is the vapor pressure of a pure sample of butanal at 50°C? The normal boiling point is 75.7°C and the heat of vaporization is 34.2 kJ/mol. O 760 torr 481 torr O 297 torr 098 torr
9. According to the following lab data for Substance A, how much heat is required to vaporize a 2.55 mol sample of the substance at its normal boiling point? Temperature (K) Vapor Pressure (Torr) 65 130.5 70 289.5 75 570.8 80 1028 85 1718
The vapor pressure of benzene is found to obey the empirical equation torr T T2 In (P) = 16.725 – 3229.86 K _ 118345 K? from 298.2 K to its normal boiling point 353.24 K. Given that the molar enthalpy of vaporization at 353.24 K is 30.8 kJ mol-1 and that the molar volume of liquid benzene at 353.24 K is 96.0 cm3 mol-1, use the above equation to determine the molar volume of the vapor at its equilibrium pressure...
A liquid has a vapor pressure of 150 torr at 60ºC. The molar heat of vaporization for this substance is 40.8 kJ/mol. Determine the normal boiling point of this liquid. {ln(P1/P2 ) = ∆Hvap/R(T1-T2/T1T2) = ∆Hvap/R(1/T2 - 1/T1); ln P = 2.303 log P}
Problem 2 (10 pts.) A. (5 pts.) The vapor pressure of mercury at 20°C is 160mPa. What is its vapor pressure at 50°C, given that its enthalpy of vaporization is 59.30kJ mol? B. (5 pts.) The normal boiling point of ethanol is 78.3 C and its molar enthalpy of vaporization is 39.3kJmol. What is the vapor pressure at 30 C