The Vapor Pressure of Nitric Acid Is 26

question 32

Multiple Choice

The vapor pressure of nitric acid is 26.6 mmHg at 10.0 °C and 208 mmHg at 50.0 °C.Using this information,calculate the heat of vaporization (Δ_vapH) of nitric acid.(R = 8.314 J/K ⋅ mol)

• A) 25.6 kJ/mol
• B) 39.1 kJ/mol
• C) 48.4 kJ/mol
• D) 225 kJ/mol
• E) 566 kJ/mol

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