Question

Three containers of the same volume contain three different gases. The masses of the molecules are m₁ , m₂ and m₃ and the number of molecules in their respective containers are N₁ , N₂ and N₃. The gas pressure in the containers are P₁ P₂ and P₃ respectively. All the gases are now mixed and put in one of these containers. The pressure P of the mixture will be

(a) P < (P₁+ P₂ +P₃)

(b) p = P₁ + P₂ +P₃/3

(c) P = P₁ + P₂ + P₃

(d) P > (P₁ + P₂ + P₃)

Answer 1

Correct option (c) P = P₁ + P₂ + P₃

Explanation:

According to Dalton's law of partial pressure, we have P = P₁ + P₂ + P₃