Chapter 5, Problem 168CP

a)

Interpretation Introduction

Interpretation: The partial pressure of ammonia after the completion of given reaction need to be determined.

Concept introduction:

• Balanced equation of a reaction is written according to law of conservation of mass.

• According toideal gas law: the pressure of gas is directly proportional to the number of moles of gas at constant volume and temperature.

$\frac{\text{P}}{\text{n}}\text{=}\frac{\text{RT}}{\text{V}}$ , P and n are proportional.

Mathematically, for two gases (1 and 2) at constant V and T,

$\frac{{\text{P}}_{\text{1}}}{{\text{n}}_{\text{1}}}\text{=}\frac{{\text{P}}_{\text{2}}}{{\text{n}}_{\text{2}}}\Rightarrow \frac{{\text{P}}_{\text{1}}}{{\text{P}}_{\text{2}}}\text{=}\frac{{\text{n}}_{\text{1}}}{{\text{n}}_{\text{2}}}$

• According toideal gas law, the volume of gas is directly proportional to the number of moles of gas at constant pressure and temperature.

$\frac{\text{V}}{\text{n}}\text{=}\frac{\text{RT}}{\text{P}}$ , V and n are proportional.

Mathematically, for two gas mixtures (1 and 2) at constant P and T,

$\frac{{\text{V}}_{\text{1}}}{{\text{n}}_{\text{1}}}\text{=}\frac{{\text{V}}_{\text{2}}}{{\text{n}}_{\text{2}}}\Rightarrow \frac{{\text{V}}_{\text{1}}}{{\text{V}}_{\text{2}}}\text{=}\frac{{\text{n}}_{\text{1}}}{{\text{n}}_{\text{2}}}$

• Mole ratios between the reactant and products of a reaction are depends upon the coefficients of respective reactant in a balanced chemical equation.

• Partial pressure of a gas in a mixture of gases is the pressure of that gas when it alone.

• Total pressure of a flask containing mixture of gases is the sum of individual partial pressures of constituted gases.

To determine: the partial pressure of ammonia after the completion of given reaction.

b)

Interpretation Introduction

Interpretation: The volume of the given container after the completion of given reaction are needed to be determined.

Concept introduction:

• Balanced equation of a reaction is written according to law of conservation of mass.

• According toideal gas law: the pressure of gas is directly proportional to the number of moles of gas at constant volume and temperature.

$\frac{\text{P}}{\text{n}}\text{=}\frac{\text{RT}}{\text{V}}$ , P and n are proportional.

Mathematically, for two gases (1 and 2) at constant V and T,

$\frac{{\text{P}}_{\text{1}}}{{\text{n}}_{\text{1}}}\text{=}\frac{{\text{P}}_{\text{2}}}{{\text{n}}_{\text{2}}}\Rightarrow \frac{{\text{P}}_{\text{1}}}{{\text{P}}_{\text{2}}}\text{=}\frac{{\text{n}}_{\text{1}}}{{\text{n}}_{\text{2}}}$

• According toideal gas law, the volume of gas is directly proportional to the number of moles of gas at constant pressure and temperature.

$\frac{\text{V}}{\text{n}}\text{=}\frac{\text{RT}}{\text{P}}$ , V and n are proportional.

Mathematically, for two gas mixtures (1 and 2) at constant P and T,

$\frac{{\text{V}}_{\text{1}}}{{\text{n}}_{\text{1}}}\text{=}\frac{{\text{V}}_{\text{2}}}{{\text{n}}_{\text{2}}}\Rightarrow \frac{{\text{V}}_{\text{1}}}{{\text{V}}_{\text{2}}}\text{=}\frac{{\text{n}}_{\text{1}}}{{\text{n}}_{\text{2}}}$

• Mole ratios between the reactant and products of a reaction are depends upon the coefficients of respective reactant in a balanced chemical equation.

• Partial pressure of a gas in a mixture of gases is the pressure of that gas when it alone.

• Total pressure of a flask containing mixture of gases is the sum of individual partial pressures of constituted gases.

To determine: the volume of the given container after the completion of given reaction.