Neco Model Questions Vol1 2024 Chemistry Question 15
Practice objective / multiple choice question 15 from the 2024 Neco Model Questions Vol1 Chemistry examination.
The vapor pressure of a liquid is 0.40 atm at 298 K and 0.80 atm at 318 K. Assuming the enthalpy of vaporisation \(\Delta H_{vap}\) is constant over this temperature range, calculate \(\Delta H_{vap}\) in kJ·mol^{-1}. Use \(R = 8.314\ \text{J·mol}^{-1}\text{K}^{-1}\). Give your answer to one decimal place.
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This is Neco Model Questions Vol1 2024 Chemistry Question 15. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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