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Class XI Chemistry States of Matter 4

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Question 1

In Vander Waals equation of state of the gas law, the constant ‘b’ is a measure of

Question 2

The volume 10 mole of an ideal gas at 10 atm and 500 K is -

Question 3

Which of the following differentiate between diffusion and effusion?

Question 4

An open vessel containing air is heated from 300 K to 400 K. The fraction of air originally present which goes out of it is at 400 K -

Question 5

A 1 : 1 mixture (by weight) of hydrogen and helium is enclosed in a one litre flask at temperature 0 °C. Assuming ideal behaviour, the partial pressure of helium is found to be 0.42 atm then concentration of hydrogen would be -

Question 6

Two glass bulbs A (of 100 mL capacity), and B (of 150 ml capacity) containing same gas are connected by a small tube of negligible volume. At particular temperature the pressure before opening the valve

. The stopcock is opened without changing the temperature. The pressure in A will -

Question 7

Which of the following is true at the critical point?

Question 8

1000 ml of a gas A at 600 torr and 500 ml of gas B at 800 torr are placed in a 2L flask. The final pressure will be -

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Jun 15JEE & BITSAT