Gce Model Questions Vol1 2019 Chemistry Question 32
Practice objective / multiple choice question 32 from the 2019 Gce Model Questions Vol1 Chemistry examination.
For a certain substance the liquid‑vapour equilibrium line between 350 K and 400 K is approximated as linear with the two points \((T_1=350\,\text{K},\;P_1=0.8\,\text{atm})\) and \((T_2=400\,\text{K},\;P_2=1.6\,\text{atm})\). Assuming the vapour behaves as an ideal gas and the molar volume of the liquid is negligible, use the Clausius-Clapeyron equation to calculate the molar enthalpy of vapourisation \(\Delta H_{\text{vap}}\) (in J mol⁻¹). Give your answer to two significant figures.
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About This Question
This is Gce Model Questions Vol1 2019 Chemistry Question 32. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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