# NEET Physics Kinetic Theory of Gases Questions Solved

Three containers of the same volume contain three different gases. The masses of the molecules are  and ${\mathrm{m}}_{3}$ and the number of molecules in their respective containers are  and ${\mathrm{N}}_{3}$ . The gas pressure in the containers are  and ${\mathrm{P}}_{3}$ respectively. All the gases are now mixed and put in one of the containers. The pressure P of mixture will be

1. $\mathrm{P}<\left({\mathrm{P}}_{1}+{\mathrm{P}}_{2}+{\mathrm{P}}_{3}\right)$

2. $\mathrm{P}=\frac{{\mathrm{P}}_{1}+{\mathrm{P}}_{2}+{\mathrm{P}}_{3}}{3}$

3. $\mathrm{P}={\mathrm{P}}_{1}+{\mathrm{P}}_{2}+{\mathrm{P}}_{3}$

4. $\mathrm{P}>\left({\mathrm{P}}_{1}+{\mathrm{P}}_{2}+{\mathrm{P}}_{3}\right)$

3. According to the Dalton’s law of partial pressures, the total pressure will be ${\mathrm{P}}_{1}+{\mathrm{P}}_{2}+{\mathrm{P}}_{3}$.

Difficulty Level:

• 10%
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