19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
In the gas equation PV = nRT, the value of R depends upon
A gas at 298 K is shifted from a vessel of 250 cm3 capacity to that of 1L capacity. The final pressure of the gas will
At 25oC temperature and 730 mm pressure, 380 mL of dry oxygen was collected. If the temperature is held constant, what volume will be oxygen occupy at 760 mm pressure?
A gas of volume 100 cc. is kept in a vessel at pressure 104 Pa maintained at temperature 24ºC if now the pressure is increased to 105 Pa, keeping the temperature constant, then the volume of the gas becomes
By the ideal gas law, the pressure of 0.60 mole NH3 gas in a 3.0 L vessel at 25°C is (AFMC 2009)
At constant temperature, in a given mass of an ideal gas
If 20 cm3 gas at 1 atm. is expanded to 50 cm3 at constant T, then what is the final pressure ? (a) 20 50 x (b) 50 20 x (c) x x
A gas of volume 100 cc. is kept in a vessel at pressure 104 Pa maintained at temperature 24ºC if now the pressure is increased to 105 Pa, keeping the temperature constant, then the volume of the gas becomes
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
The weight of CH4 in a 9-L cylinder at 27oC temperature and 16 atm pressure is (R = 0.0821 L atm K–1 mol–1)
For an ideal gas ratio of P d is equal to: