Question

1 L of N_2_ gas, having a pressure of 2.5 atm, is added 1 L of Ar gas, having a pressure of 3.7 atm, in a sealed, rigid flask. What is the final pressure in the flask?

Answer 1

Answer:

P(total) = 6.2 atm

Explanation:

Given data:

Pressure of nitrogen = 2.5 atm

Pressure of argon = 3.7 atm

Final pressure = ?

Solution;

According to Dalton law of partial pressure,

The total pressure exerted by mixture of gas is equal to the sum of individual pressure of each gas present in mixture.

Mathematical expression:

P(total) = P₁ + P₂+.... Pₙ

Now we will put the values in formula:

P(total) = P₁ + P₂

P(total) = 2.5 atm + 3.7 atm

P(total) = 6.2 atm