This graph shows how the vapor pressure of three liquids varies with temperature: 900- 800- 700- 600 500 400 300 200. benzene methanol 100 acetone 60 80 temperature, °C Use the graph to answer the following questions: most volatile: choose one o Which liquid is the most volatile? Which is the least volatile? least volatile: choose one o benzene: What is the normal boiling point of each liquid? Note: your answer must be within 1°C of the exact answer to be graded correct. methanol: acetone: more Suppose a beaker of methanol is put inside a sealed tank containing methanol gas at 53. degree C and 190. torr. After ten minutes, will there be more liquid in the beaker, less liquid, or the same amount? less the same vapor pressure, torr

Basing on the provided diagram, what is the normal boiling point of this compound?

This question as been getting rejected, but this is not a grade assigment. This just a pratice problem.

Use the observation in the first column to answer the question in the second column. observation At 1 atm pressure, Substance E boils at 11. °C and Substance F boils at 30. °C. At 37 °C, Substance C has a vapor pressure of 89. torr and Substance D has a vapor pressure of 79. torr. The enthalpy of vaporization of Substance A is smaller than that of Substance B. question Which has a higher vapor pressure? 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 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? Substance A Substance B Neither, A and B have the same vapor pressure. It's impossible to know without more information. X Ś

Consider the following experimental boiling points: CH4: -162°C C3Hg: -42°C C6H14: 69°C C9H20: 151°C Which of the following statements is correct for this set of compounds and supported by the data given? Select as many as applicable Select one or more: The molecule with the strongest intermolecular forces is C9H20 The C-C bond is the strongest covalent bond among the four molecules The dominant effect behind this trend is the strength of dipole/dipole forces OCH4 is the most polarizable molecule of the four C9H₂0 is the most polarizable molecule of the four The dominant effect behind this trend is the strength of dispersion forces

This question is not a grade question, its just a pratice problem.

I need help with 11 & 12 please and thank you.

Consider the following phase diagram. Phase diagram for compound A 1000 2 760 3 50 10 -25 25 100 150 Temperature, °C (not to scale) Which red dot represents the melting point of this compound at 760 torr? [ Select ] What is the approximate melting temperature for this substance at 760 torr? [ Select ] Which red dot represents the boiling point of this compound at 760 torr? [ Select ] What is the approximate boiling temperature for this substance at 760 torr? [ Select ] Which red dot represents the triple point for this substance? [ Select ] |What is the approximate temperature of the triple point? [ Select ] Pressure, torr (not to scale)

This graph shows how the vapor pressure of three liquids varies with temperature: vapor pressure, torr 900- 800 700 600- 500 400- 3001 200 1002 0. 100 110 120 Which liquid is the most volatile? Which is the least volatile? 130 temperature, °C Use the graph to answer the following questions: What is the normal boiling point of each liquid? Note: your answer must be within 1°C of the exact answer to be -ethylbenzene -acetic acid pyrrole Suppose a beaker of acetic acid is put inside a sealed tank containing acetic acid gas at 104. degree C and 478. torr. After ten minutes, will there be more liquid in the beaker, less liquid, or the same amount? 140 most volatile: least volatile: ethylbenzene: acetic acid: pyrrole: O more O less O the same choose one choose one °C 0 °℃ °℃ X ✪ ✪

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