Gce Model Questions Vol1 2018 Chemistry Question 49
Practice objective / multiple choice question 49 from the 2018 Gce Model Questions Vol1 Chemistry examination.
The solubility of potassium nitrate (\(\mathrm{KNO_{3}}\)) is 31.6 g per 100 g water at 20 °C and 56.0 g per 100 g water at 60 °C. Assuming the enthalpy of solution is constant over this temperature range, calculate the enthalpy change of solution \(\Delta H_{\text{sol}}\) in kJ mol\(^{-1}\). (Molar mass of \(\mathrm{KNO_{3}} = 101.1\ \text{g mol}^{-1}\)).
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About This Question
This is Gce Model Questions Vol1 2018 Chemistry Question 49. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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