Vapor pressure curves for CS₂ (carbon disulfide) and CH₃NO₂ (nitromethane) are drawn here.
(a) What are the approximate vapor pressures of CS₂ and CH₃NO₂ at 40°C?
(b) What type(s) of intermolecular forces exist in the liquid phase of each compound?
(c) What is the normal boiling point of CS₂? Of CH₃NO₂?
(d) At what temperature does CS₂ have a vapor pressure of 600 mm Hg?
(e) At what temperature does CH₃NO₂ have a vapor pressure of 600 mm Hg?

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Vapor pressure (mm Hg) 800 700 600 500 400 300 200 100 0 -30 -10 10 CS₂ 50 30 Temperature (°C) CH₂NO₂ 70 90 110