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

Concept Questions :-

Ideal gas
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

At a given volume and temperature, the pressure of a gas :

1. Varies inversely as its mass

2. Varies inversely as the square of its mass

3. Varies linearly as its mass

4. Is independent of its mass

Concept Questions :-

Ideal gas
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The rate of diffusion is :

1. Faster in solids than in liquids and gases

2. Faster in liquids than in solids and gases

3. Equal to solids, liquids, and gases

4. Faster in gases than in liquids and solids

Concept Questions :-

Ideal gas
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Two thermally insulated vessels 1 and 2 are filled with air at temperatures  volume  and pressure  respectively. If the valve joining the two vessels is opened, the temperature inside the vessel at equilibrium will be

1. ${\mathrm{T}}_{1}+{\mathrm{T}}_{2}$

2. $\left({\mathrm{T}}_{1}+{\mathrm{T}}_{2}\right)/2$

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

4. $\frac{{\mathrm{T}}_{1}{\mathrm{T}}_{2}\left({\mathrm{P}}_{1}{\mathrm{V}}_{1}+{\mathrm{P}}_{2}{\mathrm{V}}_{2}\right)}{{\mathrm{P}}_{1}{\mathrm{V}}_{1}{\mathrm{T}}_{2}+{\mathrm{P}}_{2}{\mathrm{V}}_{2}{\mathrm{T}}_{2}}$

Concept Questions :-

Ideal gas
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

For matter to exist simultaneously in gas and liquid phases :

1. The temperature must be 0 K.

2. The temperature must be less than $0°\mathrm{C}$.

3. The temperature must be less than the critical temperature.

4. The temperature must be less than the reduced temperature.

Concept Questions :-

Ideal gas
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The value of critical temperature in terms of Vander Waal’s constant a and b is

1.

2.

3.

4.

Concept Questions :-

Ideal gas
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In Vander Waal’s equation, a and b represent $\left(\mathrm{P}+\frac{\mathrm{a}}{{\mathrm{V}}^{2}}\right)\left(\mathrm{v}-\mathrm{b}\right)=\mathrm{RT}$

1. Both a and b represent correction in volume

2. Both a and b represent adhesive force between molecules

3. a represents adhesive force between molecules and b correction in volume

4. a represents correction in volume and b represents adhesive force between molecules

Concept Questions :-

Ideal gas
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

At 0°C the density of a fixed mass of a gas divided by pressure is x. At 100°C, the ratio will be:

1. $\mathrm{x}$

2. $\frac{273}{373}\mathrm{x}$

3. $\frac{373}{273}\mathrm{x}$

4. $\frac{100}{273}\mathrm{x}$

Concept Questions :-

Ideal gas
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

At what temperature volume of an ideal gas at 0°C becomes triple :

1. 546°C

2. 182°C

3. 819°C

4. 646°C

Concept Questions :-

Types of velocity
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Difficulty Level:

If an ideal gas has volume V at 27°C and it is heated at a constant pressure so that its volume becomes 1.5V. Then the value of final temperature will be

1. 600°C

2. 177°C

3. 817°C

4. None of these

Concept Questions :-

Ideal gas