Octane Has a Vapor Pressure of 40

question 101

Multiple Choice

Octane has a vapor pressure of 40. torr at 45.1°C and 400. torr at 104.0°C. What is its heat of vaporization? (R = 8.314 J/K • mol)

• A) 39.1 kJ/mol
• B) 46.0 kJ/mol
• C) 590 kJ/mol
• D) 710 kJ/mol
• E) None of these choices is correct.

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