Neco Model Questions Vol1 2022 Chemistry Question 26
Practice objective / multiple choice question 26 from the 2022 Neco Model Questions Vol1 Chemistry examination.
A sealed container holds 2.00 mol of a volatile liquid at 25 °C. The total pressure inside the container is 1.20 atm. The vapor pressure of the liquid at 25 °C is 0.80 atm. (i) Calculate the pressure exerted by the non‑condensable gas present. (ii) Assuming the vapor pressure follows the Clausius-Clapeyron relation \(\ln(P_2/P_1)= -\frac{\Delta H_{\text{vap}}}{R}\left(\frac{1}{T_2}-\frac{1}{T_1}\right)\) with \(\Delta H_{\text{vap}} = 40\ \text{kJ\ mol}^{-1}\), determine the temperature (in K) at which the vapor pressure would become equal to the total pressure.
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About This Question
This is Neco Model Questions Vol1 2022 Chemistry Question 26. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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