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The volume occupied by the molecules contained in \(4.5\) kg water at STP, if the molecular forces vanish away, is:

1. \(5.6\) m^{3}

2. \(5.6\times10^{6}\) m^{3}

3. \(5.6\times10^{3}\) m^{3}

4. \(5.6\times10^{-3}\) m^{3}

1. \(5.6\) m

2. \(5.6\times10^{6}\) m

3. \(5.6\times10^{3}\) m

4. \(5.6\times10^{-3}\) m

Subtopic: Ideal Gas Equation |

From NCERT

NEET - 2022

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Given below are two statements:

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 |

67%

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 \(27^\circ\text{C}.\) 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 \(P = \dfrac{ρRT}{M_{0}}\) where \(\rho\) and \(M_{0}\) 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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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

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A gas in a vessel is initially at pressure \(P.\) If the mass of all the gas molecules is halved and their speed is doubled, then the resultant pressure will be:

1. | \(2 P\) | 2. | \(P\) |

3. | \(\dfrac{P}{2}\) | 4. | \(4 P\) |

Subtopic: Kinetic Energy of an Ideal Gas |

64%

From NCERT

NEET - 2013

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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. | \(\dfrac{T_{H_2}}{2}=\dfrac{T_{He}}{4}\) |

3. | \(5 T_{H_2}=3 T_{He}\) | 4. | \(\dfrac{T_{H_{2}}}{5}=\dfrac{T_{{He }}}{3}\) |

Subtopic: Kinetic Energy of an Ideal Gas |

52%

From NCERT

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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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