MEDIUM
JEE Main/Advance
IMPORTANT
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Which of the following statement (s) are true about Z vs P graph for a real gas a particular temperature.

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Important Questions on States of Matter: Gases and Liquids

MEDIUM
JEE Main/Advance
IMPORTANT

One mole of N2O4 gas at 300 K is kept in a closed container at 1 atm. It is heated to 600 K when 20% by mass of N2O4 decomposes to NO2(g). The resultant pressure in the container would be:

 

EASY
JEE Main/Advance
IMPORTANT
A certain volume of argon gas (Molecular weight=40) requires 45 s to effuse through a hole at a certain pressure and temperature. The same volume of another gas of unknown molecular weight requires 60 s to pass through the same hole under the same conditions of temperature and pressure. The molecular weight of the gas is: 
HARD
JEE Main/Advance
IMPORTANT
On the surface of the earth at 1 atm pressure, a balloon filled with H2 gas occupies 500 mL. This volume is 5/6 of its maximum stretching capacity. The balloon released left in the air. It starts rising. Calculate the height in m above which the balloon will burst if the temperature of the atmosphere remains constant and the pressure decreases by 1 mm for every 100 cm rise in the height. (nearest integer)
EASY
JEE Main/Advance
IMPORTANT
A chemist has synthesized a greenish yellow gaseous compound of chlorine and oxygen and finds that its density is 7.71 g/L at 36°C and 2.88 atm. Then the molecular formula of the compound will be :
HARD
JEE Main/Advance
IMPORTANT
If a gas is expanded at constant temperature:
HARD
JEE Main/Advance
IMPORTANT

Calculate y (ratio of Cp and CV) for  triatomic linear gas at high temperature. Assume that the contribution of vibrational degree of freedom is 75% :

MEDIUM
JEE Main/Advance
IMPORTANT
Two closed vessel A and B of equal volume containing air at pressure P1 and temperature T1 are connected to each other through a narrow open tube. If the temperature of one is now maintained at T1 and other at T2 (where T1>T2 ) then that what will be the final pressure?
HARD
JEE Main/Advance
IMPORTANT
A balloon containing 1 mole air at 1 atm initially, is filled with further air till pressure increases to 4 atm. The initial diameter of the balloon is 1 m and the pressure at each stage is proportion to diameter of the balloon. How many of moles of air added to change the pressure from 1 atm to 4 atm.