19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
A sample of gas has a volume of 0.2 lit measured at 1 atm pressure and 0oC. At the same pressure, but at 273K, its volume will become
A gas is initially at 1 atm pressure. To compress it to 1/4 th of its initial volume, assuming temperature to be constant pressure to be applied is
Gay-Lussac’s law of combining volume is applicable for those gases which on mixing :
The volume of ammonia obtained by the combination of 10 mL of N2 and 30 mL of H2 is :
What will be the minimum pressure required to compress 2 Litre of gas at 1 bar to 1 litre at 25oC?
A balloon is filled with hydrogen at room temperature. It will burst, if pressure exceeds 0.2 bar. If at 1 bar pressure the gas occupied 2.27 L volume, up to what volume can be balloon be expanded?
A relationship is obtained between density and pressure of a gas as follows
Which of the following represent Gay Lussac’s law? I. P constant T II. P T P T III. P V P V Choose the correct option.
Avogadro’s law is the combination of I. Charles’ law. II. Boyle’s law. III. Dalton’s atomic theory. IV. Gay lussac’s law of combining volume Select the correct option.
‘Equal volumes of all gases under the same conditions of temperature and pressure contains equal number of molecules’. This is known as
Avogadro’s hypothesis states that
When the temperature of 23 ml of dry CO2 gas is changed from 10º to 30ºC at constant pressure of 760 mm, the volume of gas becomes closest to which one of the following ?
Equal volumes of oxygen and an unknown gas weigh 3.00g and 7.50g, respectively. Which of the following is the unknown gas?
In the gas equation PV = nRT, the value of R depends upon
In the gas equation PV = nRT, the value of n depends upon
The value of universal gas constant (R) depends on
Which one of the following is not the value of gas constant (R)? (a) 0.0821 L atm k mol (b) 1.99 cal K mol (c) 8.3 JK mol (d) 10.2 JK mol
An ideal gas equation is also called the …I… Here, I refers to
Which of the following expression is true for an ideal gas ? (a) P V T P V T (b) V V T T P P (c) P T V P T V (d) P VT P V T
An ideal gas equation is arranged as X P M RT M = molecular mass Where, X represents
If 10–4 dm3 of water is introduced into a 1.0 dm3 flask at 300 K. How many moles of water are in the vapour phase when equilibrium is established ? (Given, vapour pressure of H2O at 300 K is 3170 pa R = 8.314 JK–1 mol…
Gas equation PV = nRT is obeyed by ideal gas in
The gases become denser at …A… Here, A refers to
If 40 L of a gas is stored under a pressure of 150 atm at 300 K. How many moles of the gas are present in the cylinder?
Pure hydrogen sulphide is stored in a tank of 100 litre capacity at 20ºC and 2 atm pressure. The mass of the gas will be