Question

Two identical cylinders contain Helium at 2.5 atm and Argon at 1 atm respectively.If both the gases are transferred in one of the cylinders,what will be the new pressure?

Answer 1

Answer on Question #37997, Physics, Other

Question:

Two identical cylinders contain Helium at 2.5 atm and Argon at 1 atm respectively. If both the gases are transferred in one of the cylinders, what will be the new pressure?

Answer:

Dalton's law (also called Dalton's law of partial pressures) states that the total pressure exerted by the mixture of non-reactive gases is equal to the sum of the partial pressures of individual gases. Mathematically, the pressure of a mixture of gases can be defined as the summation:

$$P_{total} = \sum_{i} P_{i}$$

where $P_{i}$ represents the partial pressure of the each component.

We have 2 components: Helium and Argon therefore:

$$P_{total} = P_{Argon} + P_{Helium} = 1 \text{ atm} + 2.5 \text{ atm} = 3.5 \text{ atm}$$

Answer: 3.5 atm