Neco Model Questions Vol1 2017 Chemistry Question 14
Practice objective / multiple choice question 14 from the 2017 Neco Model Questions Vol1 Chemistry examination.
For a solid the vapour‑pressure relation is given by \(\ln P = -\frac{\Delta H_{fus}}{R}\frac{1}{T} + C\). At 300 K the vapour pressure of the solid is 0.10 atm and at 350 K it is 0.30 atm. Calculate the enthalpy of fusion \(\Delta H_{fus}\) in kJ mol⁻¹. (Use \(R = 8.314\,\text{J mol}^{-1}\text{K}^{-1}\).)
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This is Neco Model Questions Vol1 2017 Chemistry Question 14. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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