   Chapter 13, Problem 69GQ

Chapter
Section
Textbook Problem

How much N2 can dissolve in water at 25 °C if the N2 partial pressure is 585 mm Hg?

Interpretation Introduction

Interpretation: The amount of N2 that can be dissolved in water has to be identified.

Concept introduction:

Henry’s law: The solubility of a gas in liquid is directly proportional to the gas pressure.

Sg= kHPg,where,Sg=thegassolubility(inmol/kg)kH= Henry's constant Pg = the partial pressure of the gaseous solute.

Explanation

The amount of N2 that can be dissolved in water is calculated.

Given,

PartialpressureofN2=585mmHg=0.7799barkHofN2=6.0×10molkg1bar1

According to Henry’s law, the solubility of a gas in liquid is,

Sg= kHPg

Therefore,

The solubility of

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