Neco Model Questions Vol1 2023 Chemistry Question 2

Practice objective / multiple choice question 2 from the 2023 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2023 Chemistry Objective / Multiple Choice Hard Difficulty
Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2023 • CHEMISTRY • objective

The Henry's law constant for carbon dioxide at 25°C is \(3.3\times10^{-2}\) mol·L^{-1}·atm^{-1}. The enthalpy of solution of CO_2 is \(-19\) kJ·mol^{-1}. Calculate the concentration of dissolved CO_2 (in mol·L^{-1}) in water at 35°C when the partial pressure of CO_2 above the water is \(4.0\times10^{-4}\) atm. (Assume the van't Hoff equation applies and use \(R = 8.314\) J·mol^{-1}·K^{-1}).

Answer Options

A. 5.0×10^{-6}
B. 1.5×10^{-5}
Correct Answer C. 1.0×10^{-5}
D. 2.0×10^{-5}
Correct Answer
C
Correct Option:
1.0×10^{-5}

About This Question

This is Neco Model Questions Vol1 2023 Chemistry Question 2. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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