LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
10 views
in Chemistry by (59.9k points)
closed by
The total pressure exerted by a number of non-reacting gases in a mixture is equal to the sum of partial pressures of the gases in the mixture. This is known as
1. Boyle's law
2. Dalton's law
3. Charles' law
4. Graham's law 

1 Answer

0 votes
by (103k points)
selected by
 
Best answer
Correct Answer - Option 2 : Dalton's law

The correct answer is Dalton's law.

CONCEPT:

  • Boyle's law states that at a constant temperature, the volume of a given mass of gas is inversely proportional to its pressure.
  • P1V1 = P2V2
  • Graham’s law of diffusion states that at a constant temperature and pressure, the rate of diffusion of a gas is inversely proportional to the square root of its density.
  • \(\frac{r_{A}}{r_{B}}=\sqrt{\frac{d_{A}}{d_{B}}}\) or \(\frac{r_{A}}{r_{B}}=\sqrt{\frac{M_{B}}{M_{A}}}\)
  •  Where rA and rB are rates of diffusions of A and B, dA and dB are densities and MA and MB are molecular masses of A and B respectively​
  • Charles law: This law states that at constant pressure, the volume of a given mass of a gas is directly proportional to its absolute temperature.
  • \(\frac{V1}{T1}=\frac{V2}{T2} \)


EXPLANATION:

  • Dalton's law of partial pressures states that The total pressure exerted by a number of non-reacting gases in a mixture is equal to the sum of partial pressures of the gases in the mixture. 
  • In a mixture, the pressure exerted by individual gas is called partial pressure.
  • ptotal = p1+p2+p3+..... (at constant T and V), where ptotal is the total pressure exerted by the mixture of gases and p1, p2, p3 are the partial pressures of  gases.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...