MEDIUM
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Steel cylinder container sample of Oxygen gas at a pressure of 1 atm and temperature of 25 degree Celsius what will be the pressure of the gas if the cylinder is heated to 621 degrees Celsius.

Important Questions on Behaviour of Gases

MEDIUM
A certain sample of gas has a volume of 0.2 L at one atmosphere pressure and 273.15 K. What is the volume of gas at 273.15°C at same pressure ?
MEDIUM
The minimum pressure required to compress 600 dm3 of a gas at 1 bar to150 dm3 at 40°C is
EASY
Which of the following graphs represents Charle's law?
EASY
For all gases, at any given pressure, the graph of volume vs temperature (in Celisius) is a straight line, This graph is called
EASY
Modern vacuum pumps can evacuate a vessel down to a pressure of 4.0 × 1 0 - 1 5  atm. at room temperature (300 K). Taking R = 8.3 JK-1  mole-1, 1 atm = 105 Pa and N Avogadro = 6 × 1 0 2 3 mole - 1 , the mean distance between molecules of gas in an evacuated vessel will be of the order of :
EASY

For the given pV isotherms, which of the following is correct for T1,T2,T3?

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EASY
10 g of a gas at STP occupies a volume of 2 L. At what temperature will the volume be doubled, if pressure and amount of the gas remains constant?
HARD
Which of the following plots correctly represent Boyle's law?
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EASY
Equal masses of H2, O2 and methane have been taken in a container of volume V at temperature 27oC in identical conditions. The ratio of the volumes of gases H2:O2: methane would be
MEDIUM
A mixture of gases O2,H2 and CO are taken in a closed vessel containing charcoal. The graph that represents the correct behaviour of pressure with time is:
EASY
Slope of the plot between PV and P at constant temperature is:
MEDIUM
At a constant pressure P, the plot of volume (V) as a function of temperature (T) for 2 moles of an ideal gas gives a straight line with a slope 0.328 L.K-1. The value of P (in atm) is closest to

[Gas constant, R=0.0821 L atm mol-1 K-1 ]
MEDIUM

Choose the correct option for graphical representation of Boyle's law, which shows a graph of pressure vs. volume of a gas at different temperatures:

MEDIUM
The temperature to which the open vessel at 27°C is to be heated to expel 3 / 5 of the air in it is (Assume (i) volume of the vessel remains constant and (ii) ideal behaviour for all gases present in air)
EASY
Which one of the following is the correct PV vs P plot at constant temperature for an ideal gas ? ( P and V stand for pressure and volume of the gas respectively)
MEDIUM
1 L each of gases A and B diffused through a membrane in 15 and 30 minutes, respectively, under identical conditions. What is the ratio of molecular weight of A and B?
EASY
Three flasks of equal volumes contain CH4,CO2&Cl2 gases respectively. They will contain equal number of molecules if
EASY
Which of the following equations does NOT represent Charles’s law for a given mass of gas at constant pressure?
EASY
In a closed vessel, an ideal gas at 1 atm is heated from 27oC to 327oC , the final pressure of the gas will approximately be
EASY

At constant pressure, the volume of a fixed mass of a gas varies as a function on temperature as shown in the graph

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The volume of the gas at 300°C is larger than that at 0°C by a factor of