Water has a normal boiling point of 100.00oC.  What is the vapor pressure of water at 65.50oC in atm. ?  The  ΔHvap  for water is 40.79 kJ/mol. Your answer should have 4 sig. figs.     Just enter the number.

please explain

The normal boiling point of a liquid is 282 °C. At what temperature (in °C) would the vapor pressure be 0.5 atm? (∆Hvap = 28.5 kJ/mol)

The enthalpy of vaporization of Substance X is 8.00 Round your answer to 2 significant digits. 0 atm x10 × kJ and its normal boiling point is -61. °C. Calculate the vapor pressure of X at - 103. °℃. mol Ś

A liquid at 15.0 °C exhibits a vapor pressure of 0.735 atm. When heated to 30.0 ° C, the vapor pressure is 0.950 atm. What is the heat of vaporization (in kJ mol–1 to two decimal places) of the liquid?

Use the observation in the first column to answer the question in the second column. ft C W rosoft icrosoft 52.210... esc observation At 1 atm pressure, Substance C boils at 88. °C and Substance D boils at 65. °C. The enthalpy of vaporization of Substance E is bigger than that of Substance F. At 63 °C, Substance A has a vapor pressure of 84. torr and Substance B has a vapor pressure of 104. torr. Explanation ! 1 280 Which has a higher enthalpy of vaporization? Substance C Substance D Neither, C and D have the same enthalpy of vaporization. It's impossible to know without more information. At any temperature where both substances are liquid, which has the higher vapor pressure? O Substance E Substance F Neither, E and F have the same vapor pressure. It's impossible to know without more information. Which has a higher boiling point? Substance A Substance B Neither, A and B have the same boiling point. It's impossible to know without more information. Q # 3 17 DEC C 10 question $ 4 H % 5…

In addition to filling in the blanks below, show all of your work for this problem on paper for later upload. The heat of vaporization of isopropanol is 44.0 kJ/mol. The vapor pressure of isopropanol at 400 torr is 67.8 °C. Calculate the normal boiling point of isopropanol. Enter your value in the first box and an appropriate unit of measure in the second box.

For pentane, the AH° of vaporization is 26.22 kJ/mol and the AS° of vaporization is 87.88 J/ mol K. At 1.00 atm, what is the boiling point of pentane, in K?

The vapor pressure of liquid iodomethane, CH3I, is 40.0 mm Hg at 249 K. A sample of CH3I is placed in a closed, evacuated container of constant volume at a temperature of 414 K. It is found that all of the CH3I is in the vapor phase and that the pressure is 59.0 mm Hg. If the temperature in the container is reduced to 249 K, which of the following statements are correct? Choose all that apply. O Liquid iodomethane will be present. The pressure in the container will be 40.0 mm Hg. OOnly iodomethane vapor will be present. O No condensation will occur. O Some of the vapor initially present will condense.

The enthalpy of vaporization for acetone is 32.0 kj/mol. the normal boiling point (at 1.00 atm) for acetone is 56.5 C. What is the temperature of acetone at 560 torr?