This chapter is currently out of syllabus

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MCQ (Single Correct Answer)

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Out of Syllabus

Consider the following table :

a and b are vander Waals constants. The correct statement about the gases is :

Gas | a/(k Pa dm^{6} mol^{-1}) |
b/(dm^{3} mol^{-1}) |
---|---|---|

A | 642.32 | 0.05196 |

B | 155.21 | 0.04136 |

C | 431.91 | 0.05196 |

D | 155.21 | 0.4382 |

a and b are vander Waals constants. The correct statement about the gases is :

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JEE Main 2019 (Online) 9th April Evening Slot

MCQ (Single Correct Answer)

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Out of Syllabus

At a given temperature T, gases Ne, Ar, Xe and
Kr are found to deviate from ideal gas
behaviour. Their equation of state is given as

$$p = {{RT} \over {V - b}}$$ at T.

Here, b is the van der Waals constant. Which gas will exhibit steepest increase in the plot of Z (compression factor) vs p?

$$p = {{RT} \over {V - b}}$$ at T.

Here, b is the van der Waals constant. Which gas will exhibit steepest increase in the plot of Z (compression factor) vs p?

3

JEE Main 2019 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

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-1

Out of Syllabus

Consider the van der Waals constants, a and b,
for the following gases.

Which gas is expected to have the highest critical temperature?

Gas | Ar | Ne | Kr | Xe |
---|---|---|---|---|

a/ (atm dm^{6} mol^{–2}) |
1.3 | 0.2 | 5.1 | 4.1 |

b/ (10^{–2} dm^{3} mol^{–1}) |
3.2 | 1.7 | 1.0 | 5.0 |

Which gas is expected to have the highest critical temperature?

4

JEE Main 2019 (Online) 12th January Evening Slot

MCQ (Single Correct Answer)

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Out of Syllabus

An open vessel at 27

^{o}C is heated until two fifth of the air (assumed as an ideal gas) it has escaped from the vessel assuming that the volume of the vessel remains constant, the temperature at which the vessel has been heated is -Questions Asked from Gaseous State (MCQ (Single Correct Answer))

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