# Which one of the following graph is correct at constant pressure? 1. 2. 3. 4.

Subtopic:  Ideal Gas Equation |
62%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Molecular weight of two gases are $$M_1$$ and $$M_2.$$ At any temperature, the ratio of root mean square velocities $$v_1$$ and $$v_2$$ will be:
1. $$\sqrt{\frac{M_1}{M_2}}$$
2. $$\sqrt{\frac{M_2}{M_1}}$$
3. $$\sqrt{\frac{M_1+M_2}{M_1-M_2}}$$
4. $$\sqrt{\frac{M_1-M_2}{M_1+M_2}}$$

Subtopic:  Types of Velocities |
88%
From NCERT
PMT - 1996
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

PV versus T graphs of equal masses of $$H_2$$$$He$$ and $$O_2$$${}_{}$ are shown in the figure. Choose the correct alternative:

 1 A corresponds to $$H_2$$, B to $$He$$ and C to $$O_2$$ 2 A corresponds to $$He$$, B to $$H_2$$, and C to $$O_2$$ 3 A corresponds to $$He$$, B to $$O_2$$, and C to $$H_2$$ 4 A corresponds to $$O_2$$, B to $$He$$  and C to $$H_2$$
Subtopic:  Ideal Gas Equation |
65%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Mean kinetic energy per degree of freedom of gas molecules is:

1. $\frac{3}{2}kT$

2. kT

3. $\frac{1}{2}kT$

4. $\frac{3}{2}RT$

Subtopic:  Law of Equipartition of Energy |
58%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Volume, pressure, and temperature of an ideal gas are $$V,$$ $$P,$$ and $$T$$ respectively. If the mass of its molecule is $$m$$, then its density is: [$$k$$=Boltzmann's constant]

 1 $$mkT$$ 2 $$P \over kT$$ 3 $$P \over kTV$$ 4 $$Pm \over kT$$
Subtopic:  Ideal Gas Equation |
81%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

At what temperature is the root mean square speed of molecules of hydrogen twice as that at STP?
1. $$273$$ K
2. $$546$$ K
3. $$819$$ K
4. $$1092$$ K

Subtopic:  Types of Velocities |
65%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

At constant temperature, on increasing the pressure of a gas by 5% , its volume will decrease by:

1. 5%

2. 5.26 %

3. 4.26 %

4. 4.76 %

Subtopic:  Ideal Gas Equation |
From NCERT
PMT - 2006
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The curve between absolute temperature and $$\mathrm{v}^2_{rms}$$${}^{}$ is:

 1 2 3 4
Subtopic:  Types of Velocities |
71%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A thermally insulated piston divides a container into two compartments.  Volume, temperature, and pressure in the right compartment are $$2V$$, $$T$$ and $$2P$$, while in the left compartment the respective values are $$V$$, $$T$$ and $$P$$.  If the piston can slide freely, then in the final equilibrium position, the volume of the right-hand compartment will be:

 1 $$V$$ 2 $$3V \over 5$$ 3 $$9V \over 4$$ 4 $$12V \over 5$$
Subtopic:  Ideal Gas Equation |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The pressure and temperature of two different gases are P and T with volume V for each.  If they are mixed, keeping the same volume and temperature, the pressure of the mixture will be:

 1 P/2 2 P 3 2P 4 4P
Subtopic:  Ideal Gas Equation |
50%
From NCERT
PMT - 1997
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch