EASY
JEE Main/Advance
IMPORTANT
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The volume of nitrogen evolved on complete reaction of 9 g of ethylamine with a mixture of NaNO2 and HCl at 273K and 1 atm pressure is:

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Important Questions on States of Matter: Gases and Liquids

MEDIUM
JEE Main/Advance
IMPORTANT
A gas will approach ideal behaviour at
EASY
JEE Main/Advance
IMPORTANT
Under high pressure conditions, Van der Waal's equation for a real gas reduces to:
MEDIUM
JEE Main/Advance
IMPORTANT
In van der Waal's equation of state for a non-ideal gas, the term that accounts for intermolecular forces is
HARD
JEE Main/Advance
IMPORTANT
The van der Waals equation for one mole of a real gas can be written as P + aV2V  b=RT . For the gases H2 , NH3 , and CH4 , the value of 'a' bar L2mol2 are 0.2453, 4.170 and 2.253 respectively.
Which of the following can be inferred from the 'a' values?
EASY
JEE Main/Advance
IMPORTANT
 The density of gas A is twice that to B at the same temperature the molecular weight of gas B is twice that of A. The ratio of pressure of gas A and B will be:
MEDIUM
JEE Main/Advance
IMPORTANT
An open flask containing air is heated from 300 K to 500 K. What percentage of air will be escaped to the atmosphere, if pressure is keeping constant?
MEDIUM
JEE Main/Advance
IMPORTANT
A gaseous mixture of three gases A, B and C has a pressure of 10 atm. The total number of moles of all the gases is 10. If the partial pressures of A and B are 3.0 and 1.0 atm respectively and if 'C' has mol. weight of 2.0 . What is the weight of  'C' in g present in the mixture.