A metal tank contains three gases: oxygen, helium, and nitrogen. If the partial pressures of the three gases in the tank are 5.75 atm of O2, 7 atm of N2, and 2.25 atm of He, what is the total pressure inside of the tank

P(total) = 15 atm

Explanation:

Given data:

Pressure of O₂ = 5.75 atm

Pressure of N₂ = 7 atm

Pressure of He = 2.25 atm

Total pressure inside tank = ?

Solution:

According to Dalton law of partial pressure,

The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.

Mathematical expression:

P(total) = P₁ + P₂ + P₃+ +Pₙ

Now we will solve this  problem by using this law.

P(total) = P(O₂) + P(N₂) + P(He)

P(total) = 5.75 atm + 7 atm + 2.25 atm

P(total) = 15 atm

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