Gce Model Questions Vol1 2021 Chemistry Question 18

Practice objective / multiple choice question 18 from the 2021 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Medium Difficulty

Question 18 GCE_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

The solubility product of a sparingly soluble salt MX at 25 °C (298 K) is \(K_{sp,25}=2.0\times10^{-9}\). The dissolution is endothermic with an enthalpy change \(\Delta H_{sol}=+45\) kJ mol\(^{-1}\). Estimate the value of \(K_{sp}\) at 35 °C (308 K). Give your answer in scientific notation with two significant figures.

Answer Options

A. 2.0\times10^{-9}

Correct Answer B. 3.6\times10^{-9}

C. 1.2\times10^{-8}

D. 4.5\times10^{-9}

Correct Answer

Correct Option:

3.6\times10^{-9}

About This Question

This is Gce Model Questions Vol1 2021 Chemistry Question 18. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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