HARD
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Write the statement for: Boyle's law

Important Questions on States of Matter

HARD
Two closed bulbs of equal volume V containing an ideal gas initially at pressure pi and temperature T1 are connected through a narrow tube of negligible volume, as shown in the figure below. The temperature of one of the bulbs is then raised to T2. The final pressure Pf is:


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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
MEDIUM
The density of acetic acid vapour at 300 K and 1 atm is 5 mg cm-3 . The number of acetic acid molecules in the cluster that is formed in the gas phase is closest to
MEDIUM
What is the density of water vapour at boiling point of water?
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

EASY
The value of 1 mole of any pure ideal gas at standard temperature and pressure is always equal to
EASY
At 300 K, the density of a certain gaseous molecule at 2 bar is double to that of dinitrogen N2 at 4 bar. The molar mass of the gaseous molecule is
EASY
A spherical balloon of radius 3 cm containing helium gas has a pressure of 48×10-3 bar. At the same temperature, the pressure, of a spherical balloon of radius12 cm containing the same amount of gas will be.×10-6 bar.
EASY
An ideal gas has pressure P, volume V and absolute temperature T. If m is the mass of each molecule and K is the Boltzmann constant then density of the gas is
EASY
10 moles of a mixture of hydrogen and oxygen gases at a pressure of 1 atm at a constant volume and temperature, react to form 3.6 g of liquid water. The pressure of the resulting mixture will be closest to:
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:
MEDIUM
An open vessel at 27oC is heated until two fifth of the air (assumed as an ideal gas) in it has escaped from the vessel. Assuming that the volume of the vessel remains constant, the temperature to which the vessel has been heated is:
EASY
Which of the following equations does NOT represent Charles’s law for a given mass of gas at constant pressure?
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
HARD

Which one of the following graphs is not correct for ideal gas?

d= Density, P= Pressure, T=Temperature

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MEDIUM
The minimum pressure required to compress 600 dm3 of a gas at 1 bar to150 dm3 at 40°C is
HARD
Aluminium reacts with sulfuric acid to form aluminium sulfate and hydrogen. What is the volume of hydrogen gas in liters (L) produced at 300 K and 1.0 atm pressure, when 5.4 g of aluminium and 50.0 mL of 5.0 M sulfuric acid are combined for the reaction? (Use molar mass of aluminium as 27.0 g mol-1R=0.082 atm L mol-1K-1)
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
Assuming ideal gas behavior, the ratio of density of ammonia to that of hydrogen chloride at same temperature and pressure is: (Atomic weight of Cl is 35.5 u)
MEDIUM

The volume of gas A is twice than that of gas B. The compressibility factor of gas A is thrice than that of gas B at same temperature. What are the pressures of the gases for equal number of moles?