The volume occupied by the molecules contained in $$4.5$$ kg water at STP, if the molecular forces vanish away, is:
1. $$5.6$$ m3
2. $$5.6\times10^{6}$$ m3
3. $$5.6\times10^{3}$$ m3
4. $$5.6\times10^{-3}$$ m3
Subtopic:  Ideal Gas Equation |
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh

Select the correct option based on statements below:
 Assertion (A): As a gas bubble rises from the bottom of a lake, its volume decreases. Reason (R): As the gas bubble rises from the bottom of a lake-the pressure of the gas within decreases.
 1 (A) is True but (R) is False. 2 (A) is False but (R) is True. 3 Both (A) and (R) are True and (R) is the correct explanation of (A). 4 Both (A) and (R) are True but (R) is not the correct explanation of (A).
Subtopic:  Ideal Gas Equation |
68%
From NCERT
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Which of the following diagrams (figure) depicts ideal gas behaviour?

1. (a), (c)
2. (a), (d)
3. (c), (d)
4. (a), (b)

Subtopic:  Ideal Gas Equation |
67%
From NCERT
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A cylinder contains hydrogen gas at a pressure of $$249~\text{kPa}$$ and temperature $$27^\circ~\mathrm{C}.$$ Its density is: ($$R=8.3~\text{J mol}^{-1} \text {K}^{-1}$$)
1. $$0.2~\text{kg/m}^{3}$$
2. $$0.1~\text{kg/m}^{3}$$
3. $$0.02~\text{kg/m}^{3}$$
4. $$0.5~\text{kg/m}^{3}$$

Subtopic:  Ideal Gas Equation |
61%
From NCERT
NEET - 2020
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The process on an ideal gas as shown in the figure given below is:

1. isothermal
2. isobaric
3. isochoric
4. none of these

Subtopic:  Ideal Gas Equation |
84%
From NCERT
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An ideal gas equation can be written as $\mathrm{P}=\frac{\mathrm{\rho RT}}{{\mathrm{M}}_{0}}$ where $\mathrm{\rho }$ and ${\mathrm{M}}_{0}$ are respectively:

 1 mass density, the mass of the gas 2 number density, molar mass 3 mass density, molar mass 4 number density, the mass of the gas
Subtopic:  Ideal Gas Equation |
78%
From NCERT
NEET - 2020
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NEET 2023 - Target Batch - Aryan Raj Singh

The pressure exerted by a gas enclosed within a room is due to:

 1 collisions of the gas molecules with the walls of the room. 2 repulsive force between molecules of the gas. 3 weight of the molecules of the gas. 4 angular momentum of the molecules.
Subtopic:  Kinetic Energy of an Ideal Gas |
90%
From NCERT
Hints

In a vessel, the gas is at a pressure $$P$$. If the mass of all the molecules is halved and their speed is doubled, then the resultant pressure will be:
1. $$2 P$$
2. $$P$$
3. $$\frac{P}{2}$$
4. $$4 P$$
Subtopic:  Kinetic Energy of an Ideal Gas |
64%
From NCERT
NEET - 2013
Hints

Suppose that the average kinetic energy (translational & rotational) of random molecular motion of helium ($$He$$) at temperature $$T_{He}$$ is equal to that of hydrogen ($$H_2$$) at temperature $$T_{H_2}$$. Then,
1. $$T_{H_{2}}=T_{H e}$$
2. $$\frac{T_{H_2}}{2}=\frac{T_{He}}{4}$$
3. $$5 T_{H_2}=3 T_{He}$$
4. $$\frac{T_{H_{2}}}{5}=\frac{T_{\text {He }}}{3}$$
Subtopic:  Kinetic Energy of an Ideal Gas |
52%
From NCERT
Hints

Which of the following parameters is the same for molecules of all gases at a given temperature?

 1 mass 2 speed 3 momentum 4 kinetic energy

Subtopic:  Kinetic Energy of an Ideal Gas |
70%
From NCERT
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