The Molar Enthalpy of Vaporization of Hexane (C₆H₁₄) Is 28

question 124

Multiple Choice

The molar enthalpy of vaporization of hexane (C₆H₁₄) is 28.9 kJ/mol, and its normal boiling point is 68.73°C. What is the vapor pressure of hexane at 25°C? (R = 8.314 J/K • mol)

• A) 171 torr
• B) 4.44 torr
• C) 117 torr
• D) 3370 torr
• E) 759 torr

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Definitions:

Dong Qichang

A prominent Chinese painter, calligrapher, and art theorist from the late Ming Dynasty known for his landscape paintings and for advocating the literati painting style.

Yuan Administration

The administrative framework and ruling practices during the Yuan dynasty, a period when China was under Mongol rule from the 13th to the 14th century.

Mongol Court

The royal court and political center of the Mongol Empire, known for its significant cultural and diplomatic activities under leaders like Genghis Khan.

Zhao Mengfu

A prominent Chinese scholar, painter, and calligrapher during the Yuan Dynasty, known for his landscapes and horse paintings.