Neco 2023 Chemistry Question 2

Practice objective / multiple choice question 2 from the 2023 Neco Chemistry examination.

Neco 2023 Chemistry Objective / Multiple Choice Medium Difficulty
Question 2 NECO • 2023 • CHEMISTRY • objective

The solubility of potassium nitrate (KNO_3) in water is 31.6 g per 100 g water at 20°C and 69.9 g per 100 g water at 40°C. Assuming the enthalpy of solution is constant over this temperature range, estimate the solubility at 60°C using the van\'t Hoff equation.

Answer Options

A. 150 g per 100 g water
Correct Answer B. 140 g per 100 g water
C. 120 g per 100 g water
D. 100 g per 100 g water
Correct Answer
B
Correct Option:
140 g per 100 g water

About This Question

This is Neco 2023 Chemistry Question 2. It is one of the objective questions from the 2023 Neco Chemistry examination.

Difficulty level: Medium .

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