
Which mixture of gases at room temperature does not obey Dalton’s law of partial pressure?
(a)- $N{{O}_{2}}\text{ and }{{O}_{2}}$
(b)- $N{{H}_{3}}\text{ and }HCl$
(c)- $CO\text{ and }C{{O}_{2}}$
(d)- $S{{O}_{2}}\text{ and }S{{O}_{3}}$
Answer
509.7k+ views
Hint: Dalton’s law of partial pressure says that the total pressure of the gaseous mixture is equal to the partial pressure of all the gases present in the mixture. So, the gases must not react with each other. Hence, find the option in which the gases react with each other.
Complete step by step answer:
The various gas laws deal only with the pressure, volume, and temperature of a single gas. However, if two or more chemically non-reacting gases are enclosed in the same vessel, the pressure exerted by the mixture was first studied in 1807 by John Dalton. He observed the gases and put forward the result which is known as Dalton's Law of Partial Pressure:
“If two or more gases which chemically do not react with each other are enclosed in a vessel then the total pressure is equal to the sum of the partial pressure of each gas would exert when present alone in the vessel present at the same temperature"
Let a vessel contain n number of gases. The total pressure of the gases in the vessel is P. The partial pressure of the gases are${{p}_{1}},\text{ }{{p}_{2}},\text{ }{{p}_{3}}........{{p}_{n}}$. So, according to
Dalton's law:
$P={{p}_{1}}\text{+ }{{p}_{2}}\text{+ }{{p}_{3}}+........+{{p}_{n}}$
The condition is that the gases must not react with each other.
From the above options given $N{{H}_{3}}\text{ and }HCl$ react with each other, therefore, they will not obey Dalton's Law of Partial Pressure.
So, the correct answer is $N{{H}_{3}}\text{ and }HCl$
So, the correct answer is “Option B”.
Note: Dalton's Law of Partial Pressure is used to calculate the pressure of dry gas. The formula used is: ${{P}_{dry\text{ }gas}}={{P}_{moist\text{ }gas}}-Aqueous\text{ }tension$. It is also used to calculate the partial pressure of any component in the mixture. The formula used is $\text{Partial Pressure of A = Mole fraction of A x Total pressure}$.
Complete step by step answer:
The various gas laws deal only with the pressure, volume, and temperature of a single gas. However, if two or more chemically non-reacting gases are enclosed in the same vessel, the pressure exerted by the mixture was first studied in 1807 by John Dalton. He observed the gases and put forward the result which is known as Dalton's Law of Partial Pressure:
“If two or more gases which chemically do not react with each other are enclosed in a vessel then the total pressure is equal to the sum of the partial pressure of each gas would exert when present alone in the vessel present at the same temperature"
Let a vessel contain n number of gases. The total pressure of the gases in the vessel is P. The partial pressure of the gases are${{p}_{1}},\text{ }{{p}_{2}},\text{ }{{p}_{3}}........{{p}_{n}}$. So, according to
Dalton's law:
$P={{p}_{1}}\text{+ }{{p}_{2}}\text{+ }{{p}_{3}}+........+{{p}_{n}}$
The condition is that the gases must not react with each other.
From the above options given $N{{H}_{3}}\text{ and }HCl$ react with each other, therefore, they will not obey Dalton's Law of Partial Pressure.
So, the correct answer is $N{{H}_{3}}\text{ and }HCl$
So, the correct answer is “Option B”.
Note: Dalton's Law of Partial Pressure is used to calculate the pressure of dry gas. The formula used is: ${{P}_{dry\text{ }gas}}={{P}_{moist\text{ }gas}}-Aqueous\text{ }tension$. It is also used to calculate the partial pressure of any component in the mixture. The formula used is $\text{Partial Pressure of A = Mole fraction of A x Total pressure}$.
Recently Updated Pages
Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 Computer Science: Engaging Questions & Answers for Success

Master Class 11 Maths: Engaging Questions & Answers for Success

Master Class 11 English: Engaging Questions & Answers for Success

Trending doubts
Difference Between Prokaryotic Cells and Eukaryotic Cells

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

1 Quintal is equal to a 110 kg b 10 kg c 100kg d 1000 class 11 physics CBSE

Net gain of ATP in glycolysis a 6 b 2 c 4 d 8 class 11 biology CBSE

Give two reasons to justify a Water at room temperature class 11 chemistry CBSE
