Gce Model Questions Vol1 2025 Chemistry Question 34
Practice objective / multiple choice question 34 from the 2025 Gce Model Questions Vol1 Chemistry examination.
A pressure-temperature diagram for water shows a linear approximation between the points (T₁ = 373 K, P₁ = 1.00 atm) and (T₂ = 423 K, P₂ = 4.80 atm). Using the Clausius-Clapeyron relation, estimate the molar enthalpy of vaporisation ΔH_vap in kJ mol⁻¹. (Take R = 8.314 J mol⁻¹ K⁻¹ and assume the slope is constant over this interval.)
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This is Gce Model Questions Vol1 2025 Chemistry Question 34. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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